Debian DLA-3065-1 : linux - LTS security update

2022-07-02T00:00:00

Description

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities - kernel drivers before version 4.17-rc1 are vulnerable to a weakness in the Linux kernel's implementation - Product: AndroidVersions: Android kernelAndroid ID: A-173788806References: Upstream kernel - A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an - A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in - A memory leak flaw was found in the Linux kernel's DMA subsystem, in the way a user calls This flaw allows a local user to read random memory from the kernel space. (CVE-2022-0854) - A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in - A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This - A NULL pointer dereference flaw was found in the Linux kernel's X.25 set of standardized network protocols - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use (CVE-2022-1734) - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated - Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an - Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of - Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, - drivers/usb/gadget/legacy/inode.c in the Linux kernel through 5.16.8 mishandles dev->buf release. (CVE-2022-24958) - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to - In drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel before 5.16.12, the endpoint index is not - In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356) - ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double (CVE-2022-28390) - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create - The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are - drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of (CVE-2022-33981) Note that Nessus has not tested for these issues but has instead relied only on the application's as referenced in the dla-3065 advisory. of random seed data. Programs, early in the boot sequence, could use the data allocated for the seed before it was sufficiently generated. (CVE-2018-1108) (CVE-2021-39713) improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem. (CVE-2021-4149) the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494) DMA_FROM_DEVICE. write(). privilege escalation. (CVE-2022-1011) flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information. (CVE-2022-1353) functionality in the way a user terminates their session using a simulated Ethernet card and continued usage of this connection. This flaw allows a local user to crash the system. (CVE-2022-1516) after free both read or write when non synchronized between cleanup routine and firmware download routine. user to potentially enable information disclosure via local access. (CVE-2022-21123) authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125) authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166) multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042 (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23041, CVE-2022-23042) aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information. (CVE-2022-23960) EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490) obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966) validated and might be manipulated by the host for out-of-array access. (CVE-2022-27223) free. to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594) user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free. (CVE-2022-32250) used. (CVE-2022-32296) a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function. self-reported version number.

{"id": "DEBIAN_DLA-3065.NASL", "vendorId": null, "type": "nessus", "bulletinFamily": "scanner", "title": "Debian DLA-3065-1 : linux - LTS security update", "description": "The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3065 advisory.\n\n - kernel drivers before version 4.17-rc1 are vulnerable to a weakness in the Linux kernel's implementation of random seed data. Programs, early in the boot sequence, could use the data allocated for the seed before it was sufficiently generated. (CVE-2018-1108)\n\n - Product: AndroidVersions: Android kernelAndroid ID: A-173788806References: Upstream kernel (CVE-2021-39713)\n\n - A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem. (CVE-2021-4149)\n\n - A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494)\n\n - A memory leak flaw was found in the Linux kernel's DMA subsystem, in the way a user calls DMA_FROM_DEVICE.\n This flaw allows a local user to read random memory from the kernel space. (CVE-2022-0854)\n\n - A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers write().\n This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. (CVE-2022-1011)\n\n - A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information. (CVE-2022-1353)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's X.25 set of standardized network protocols functionality in the way a user terminates their session using a simulated Ethernet card and continued usage of this connection. This flaw allows a local user to crash the system. (CVE-2022-1516)\n\n - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use after free both read or write when non synchronized between cleanup routine and firmware download routine.\n (CVE-2022-1734)\n\n - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21123)\n\n - Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)\n\n - Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished.\n The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042 (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23041, CVE-2022-23042)\n\n - Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information. (CVE-2022-23960)\n\n - drivers/usb/gadget/legacy/inode.c in the Linux kernel through 5.16.8 mishandles dev->buf release.\n (CVE-2022-24958)\n\n - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)\n\n - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)\n\n - In drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel before 5.16.12, the endpoint index is not validated and might be manipulated by the host for out-of-array access. (CVE-2022-27223)\n\n - In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356)\n\n - ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double free.\n (CVE-2022-28390)\n\n - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)\n\n - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free. (CVE-2022-32250)\n\n - The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. (CVE-2022-32296)\n\n - drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.\n (CVE-2022-33981)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "published": "2022-07-02T00:00:00", "modified": "2022-12-26T00:00:00", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 7.2}, "severity": "HIGH", "exploitabilityScore": 3.9, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, "href": "https://www.tenable.com/plugins/nessus/162697", "reporter": "This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.", "references": ["http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1012", "https://security-tracker.debian.org/tracker/CVE-2022-26490", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24958", "https://security-tracker.debian.org/tracker/CVE-2022-23960", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2153", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21166", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26966", "https://security-tracker.debian.org/tracker/CVE-2022-23041", "https://security-tracker.debian.org/tracker/CVE-2022-26966", "https://security-tracker.debian.org/tracker/CVE-2022-28356", "https://security-tracker.debian.org/tracker/CVE-2022-23037", "https://security-tracker.debian.org/tracker/CVE-2022-23036", "https://security-tracker.debian.org/tracker/CVE-2018-1108", "https://security-tracker.debian.org/tracker/CVE-2022-1199", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23037", "https://security-tracker.debian.org/tracker/CVE-2022-0494", "https://security-tracker.debian.org/tracker/source-package/linux", "https://security-tracker.debian.org/tracker/CVE-2022-2153", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0854", "https://security-tracker.debian.org/tracker/CVE-2022-1975", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27223", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23039", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1108", "https://security-tracker.debian.org/tracker/CVE-2022-1516", "https://security-tracker.debian.org/tracker/CVE-2022-1011", "https://security-tracker.debian.org/tracker/CVE-2022-32250", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23041", "https://packages.debian.org/source/stretch/linux", "https://security-tracker.debian.org/tracker/CVE-2022-1729", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21123", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1016", "https://security-tracker.debian.org/tracker/CVE-2021-39713", "https://security-tracker.debian.org/tracker/CVE-2022-1012", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30594", "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922204", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23040", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1734", "https://security-tracker.debian.org/tracker/CVE-2022-1353", "https://security-tracker.debian.org/tracker/CVE-2022-32296", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1974", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23036", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28356", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28390", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32250", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1353", "https://security-tracker.debian.org/tracker/CVE-2022-1016", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1516", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4149", "https://security-tracker.debian.org/tracker/CVE-2022-1198", "https://security-tracker.debian.org/tracker/CVE-2022-1974", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0494", "https://security-tracker.debian.org/tracker/CVE-2022-0854", "https://security-tracker.debian.org/tracker/CVE-2022-24958", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26490", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1198", "https://security-tracker.debian.org/tracker/CVE-2022-1734", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1199", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23042", "https://security-tracker.debian.org/tracker/CVE-2022-23038", "https://security-tracker.debian.org/tracker/CVE-2022-30594", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32296", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-33981", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21125", "https://security-tracker.debian.org/tracker/CVE-2022-21123", "https://security-tracker.debian.org/tracker/CVE-2022-27223", "https://www.debian.org/lts/security/2022/dla-3065", "https://security-tracker.debian.org/tracker/CVE-2022-21166", "https://security-tracker.debian.org/tracker/CVE-2022-23039", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1729", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23960", "https://security-tracker.debian.org/tracker/CVE-2022-21125", "https://security-tracker.debian.org/tracker/CVE-2022-33981", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0812", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1975", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1011", "https://security-tracker.debian.org/tracker/CVE-2022-28390", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23038", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39713", "https://security-tracker.debian.org/tracker/CVE-2021-4149", "https://security-tracker.debian.org/tracker/CVE-2022-23042", "https://security-tracker.debian.org/tracker/CVE-2022-0812", "https://security-tracker.debian.org/tracker/CVE-2022-23040"], "cvelist": ["CVE-2018-1108", "CVE-2021-39713", "CVE-2021-4149", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-0854", "CVE-2022-1011", "CVE-2022-1012", "CVE-2022-1016", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1353", "CVE-2022-1516", "CVE-2022-1729", "CVE-2022-1734", "CVE-2022-1974", "CVE-2022-1975", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-2153", "CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042", "CVE-2022-23960", "CVE-2022-24958", "CVE-2022-26490", "CVE-2022-26966", "CVE-2022-27223", "CVE-2022-28356", "CVE-2022-28390", "CVE-2022-30594", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-33981"], "immutableFields": [], "lastseen": "2023-03-21T05:40:22", "viewCount": 15, "enchantments": {"score": {"value": 0.2, "vector": "NONE"}, "dependencies": {"references": [{"type": "almalinux", "idList": ["ALSA-2022:1988", "ALSA-2022:5564", "ALSA-2022:5819", "ALSA-2022:6460", "ALSA-2022:7110", "ALSA-2022:7683"]}, {"type": "altlinux", "idList": ["3389D346758499949D2E8B5AA776BFA2", "69D1753D74C2782AF5C4B3E24536D125"]}, {"type": "amazon", "idList": ["ALAS-2018-1023", "ALAS-2022-1571", "ALAS-2022-1577", "ALAS-2022-1581", "ALAS-2022-1591", "ALAS-2022-1604", "ALAS-2022-1606", "ALAS-2022-1636", "ALAS-2022-1768", "ALAS-2022-1852", "ALAS2-2018-1023", "ALAS2-2022-1761", "ALAS2-2022-1768", "ALAS2-2022-1774", "ALAS2-2022-1793", "ALAS2-2022-1798", "ALAS2-2022-1813", "ALAS2-2022-1838", "ALAS2-2022-1852"]}, {"type": "androidsecurity", "idList": ["ANDROID:2019-11-01"]}, {"type": "avleonov", "idList": ["AVLEONOV:317FBD7DA93C95993A9FFF38FB04A987", "AVLEONOV:75C789BDAA68C1C2CEC0F20F1D138B01"]}, {"type": "centos", "idList": ["CESA-2022:5232", "CESA-2022:5937"]}, {"type": "citrix", "idList": ["CTX460064"]}, {"type": "cloudfoundry", "idList": ["CFOUNDRY:67D855E67C3B3297A83211802F1890CE", "CFOUNDRY:A03F5AC2013ED260DC64C02E99816F92", "CFOUNDRY:FD7245C3742F24986DE3C2791BDAC899"]}, {"type": "cloudlinux", "idList": ["CLSA-2022:1650377026", "CLSA-2022:1650377052"]}, {"type": "cnvd", "idList": ["CNVD-2022-20170", "CNVD-2022-21810", "CNVD-2022-68559", "CNVD-2022-69203", "CNVD-2022-74091", "CNVD-2022-74092", "CNVD-2022-79426"]}, {"type": "cve", "idList": ["CVE-2018-1108", "CVE-2021-39713", "CVE-2021-4149", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-0854", "CVE-2022-1011", "CVE-2022-1012", "CVE-2022-1016", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1353", "CVE-2022-1516", "CVE-2022-1729", "CVE-2022-1734", "CVE-2022-1836", "CVE-2022-1966", "CVE-2022-1974", "CVE-2022-1975", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-2153", "CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042", "CVE-2022-23960", "CVE-2022-24958", "CVE-2022-26490", "CVE-2022-26966", "CVE-2022-27223", "CVE-2022-28356", "CVE-2022-28390", "CVE-2022-30594", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-33981", "CVE-2022-34918"]}, {"type": "debian", "idList": ["DEBIAN:DLA-2941-1:96084", "DEBIAN:DLA-3065-1:C1710", "DEBIAN:DLA-3131-1:083C4", "DEBIAN:DLA-3173-1:82909", "DEBIAN:DSA-4188-1:B3909", "DEBIAN:DSA-4188-1:E4177", 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(CVE-2022-21166)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to\n multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV\n device frontends are using the grant table interfaces for removing access rights of the backends in ways\n being subject to race conditions, resulting in potential data leaks, data corruption by malicious\n backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the\n gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they\n assume that a following removal of the granted access will always succeed, which is not true in case the\n backend has mapped the granted page between those two operations. 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"p-cpe:/a:debian:debian_linux:usbip", "cpe:/o:debian:debian_linux:9.0"], "solution": "Upgrade the linux packages.\n\nFor Debian 9 stretch, these problems have been fixed in version 4.9.320-2.", "nessusSeverity": "High", "cvssScoreSource": "CVE-2022-32250", "vendor_cvss2": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}, "vendor_cvss3": {"score": 8.8, "vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "vpr": {"risk factor": "Critical", "score": "9.4"}, "exploitAvailable": true, "exploitEase": "Exploits are available", "patchPublicationDate": "2022-07-01T00:00:00", "vulnerabilityPublicationDate": "2018-04-12T00:00:00", "exploitableWith": []}

{"osv": [{"lastseen": "2022-07-21T08:14:06", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\n\nThis update is unfortunately not available for the armel architecture.\n\n\n* [CVE-2018-1108](https://security-tracker.debian.org/tracker/CVE-2018-1108)\nIt was discovered that the random driver could generate random\n bytes through /dev/random and the getrandom() system call before\n gathering enough entropy that these would be unpredictable. This\n could compromise the confidentiality and integrity of encrypted\n communications.\n\n\nThe original fix for this issue had to be reverted because it\n caused the boot process to hang on many systems. In this version,\n the random driver has been updated, making it more effective in\n gathering entropy without needing a hardware RNG.\n* [CVE-2021-4149](https://security-tracker.debian.org/tracker/CVE-2021-4149)\nHao Sun reported a flaw in the Btrfs fileysstem driver. There\n is a potential lock imbalance in an error path. A local user\n might be able to exploit this for denial of service.\n* [CVE-2021-39713](https://security-tracker.debian.org/tracker/CVE-2021-39713)\nThe syzbot tool found a race condition in the network scheduling\n subsystem which could lead to a use-after-free. A local user\n could exploit this for denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n* [CVE-2022-0494](https://security-tracker.debian.org/tracker/CVE-2022-0494)\nThe scsi\\_ioctl() was susceptible to an information leak only\n exploitable by users with CAP\\_SYS\\_ADMIN or CAP\\_SYS\\_RAWIO\n capabilities.\n* [CVE-2022-0812](https://security-tracker.debian.org/tracker/CVE-2022-0812)\nIt was discovered that the RDMA transport for NFS (xprtrdma)\n miscalculated the size of message headers, which could lead to a\n leak of sensitive information between NFS servers and clients.\n* [CVE-2022-0854](https://security-tracker.debian.org/tracker/CVE-2022-0854)\nAli Haider discovered a potential information leak in the DMA\n subsystem. On systems where the swiotlb feature is needed, this\n might allow a local user to read sensitive information.\n* [CVE-2022-1011](https://security-tracker.debian.org/tracker/CVE-2022-1011)\nJann Horn discovered a flaw in the FUSE (Filesystem in User-Space)\n implementation. A local user permitted to mount FUSE filesystems\n could exploit this to cause a use-after-free and read sensitive\n information.\n* [CVE-2022-1012](https://security-tracker.debian.org/tracker/CVE-2022-1012)\n, [CVE-2022-32296](https://security-tracker.debian.org/tracker/CVE-2022-32296)\n\n\nMoshe Kol, Amit Klein, and Yossi Gilad discovered a weakness\n in randomisation of TCP source port selection.\n* [CVE-2022-1016](https://security-tracker.debian.org/tracker/CVE-2022-1016)\nDavid Bouman discovered a flaw in the netfilter subsystem where\n the nft\\_do\\_chain function did not initialize register data that\n nf\\_tables expressions can read from and write to. A local attacker\n can take advantage of this to read sensitive information.\n* [CVE-2022-1198](https://security-tracker.debian.org/tracker/CVE-2022-1198)\nDuoming Zhou discovered a race condition in the 6pack hamradio\n driver, which could lead to a use-after-free. A local user could\n exploit this to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n* [CVE-2022-1199](https://security-tracker.debian.org/tracker/CVE-2022-1199)\nDuoming Zhou discovered race conditions in the AX.25 hamradio\n protocol, which could lead to a use-after-free or null pointer\n dereference. A local user could exploit this to cause a denial of\n service (memory corruption or crash) or possibly for privilege\n escalation.\n* [CVE-2022-1353](https://security-tracker.debian.org/tracker/CVE-2022-1353)\nThe TCS Robot tool found an information leak in the PF\\_KEY\n subsystem. A local user can receive a netlink message when an\n IPsec daemon registers with the kernel, and this could include\n sensitive information.\n* [CVE-2022-1516](https://security-tracker.debian.org/tracker/CVE-2022-1516)\nA NULL pointer dereference flaw in the implementation of the X.25\n set of standardized network protocols, which can result in denial\n of service.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-1729](https://security-tracker.debian.org/tracker/CVE-2022-1729)\nNorbert Slusarek discovered a race condition in the perf subsystem\n which could result in local privilege escalation to root. The\n default settings in Debian prevent exploitation unless more\n permissive settings have been applied in the\n kernel.perf\\_event\\_paranoid sysctl.\n* [CVE-2022-1734](https://security-tracker.debian.org/tracker/CVE-2022-1734)\nDuoming Zhou discovered race conditions in the nfcmrvl NFC driver\n that could lead to a use-after-free, double-free or null pointer\n dereference. A local user might be able to exploit these for\n denial of service (crash or memory corruption) or possibly for\n privilege escalation.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-1974](https://security-tracker.debian.org/tracker/CVE-2022-1974)\n, [CVE-2022-1975](https://security-tracker.debian.org/tracker/CVE-2022-1975)\n\n\nDuoming Zhou discovered that the NFC netlink interface was\n suspectible to denial of service.\n* [CVE-2022-2153](https://security-tracker.debian.org/tracker/CVE-2022-2153)\nkangel reported a flaw in the KVM implementation for x86\n processors which could lead to a null pointer dereference. A local\n user permitted to access /dev/kvm could exploit this to cause a\n denial of service (crash).\n* [CVE-2022-21123](https://security-tracker.debian.org/tracker/CVE-2022-21123)\n, [CVE-2022-21125](https://security-tracker.debian.org/tracker/CVE-2022-21125), [CVE-2022-21166](https://security-tracker.debian.org/tracker/CVE-2022-21166)\n\n\nVarious researchers discovered flaws in Intel x86 processors,\n collectively referred to as MMIO Stale Data vulnerabilities.\n These are similar to the previously published Microarchitectural\n Data Sampling (MDS) issues and could be exploited by local users\n to leak sensitive information.\n\n\nFor some CPUs, the mitigations for these issues require updated\n microcode. An updated intel-microcode package may be provided at\n a later date. The updated CPU microcode may also be available as\n part of a system firmware (\"BIOS\") update.\n\n\nFurther information on the mitigation can be found at\n \n or in the linux-doc-4.9 package.\n* [CVE-2022-23036](https://security-tracker.debian.org/tracker/CVE-2022-23036)\n, [CVE-2022-23037](https://security-tracker.debian.org/tracker/CVE-2022-23037), [CVE-2022-23038](https://security-tracker.debian.org/tracker/CVE-2022-23038), [CVE-2022-23039](https://security-tracker.debian.org/tracker/CVE-2022-23039),\n[CVE-2022-23040](https://security-tracker.debian.org/tracker/CVE-2022-23040), [CVE-2022-23041](https://security-tracker.debian.org/tracker/CVE-2022-23041), [CVE-2022-23042](https://security-tracker.debian.org/tracker/CVE-2022-23042) (XSA-396)\n\n\nDemi Marie Obenour and Simon Gaiser of Invisible Things Lab\n discovered flaws in several Xen PV device frontends. These drivers\n misused the Xen grant table API in a way that could be exploited\n by a malicious device backend to cause data corruption, leaks of\n sensitive information, or a denial of service (crash).\n* [CVE-2022-23960](https://security-tracker.debian.org/tracker/CVE-2022-23960)\nResearchers at VUSec discovered that the Branch History Buffer in\n Arm processors can be exploited to create information side channels with speculative execution. This issue is similar to\n Spectre variant 2, but requires additional mitigations on some\n processors.\n\n\nThis can be exploited to obtain sensitive information from a\n different security context, such as from user-space to the kernel,\n or from a KVM guest to the kernel.\n* [CVE-2022-24958](https://security-tracker.debian.org/tracker/CVE-2022-24958)\nA flaw was discovered that the USB gadget subsystem that could\n lead to a use-after-free. A local user permitted to configure USB\n gadgets could exploit this to cause a denial of service (crash or\n memory corruption) or possibly for privilege escalation.\n* [CVE-2022-26490](https://security-tracker.debian.org/tracker/CVE-2022-26490)\nBuffer overflows in the STMicroelectronics ST21NFCA core driver\n can result in denial of service or privilege escalation.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-26966](https://security-tracker.debian.org/tracker/CVE-2022-26966)\nA flaw was discovered in the sr9700 USB networking driver. A local\n user able to attach a specially designed USB device could use this\n to leak sensitive information.\n* [CVE-2022-27223](https://security-tracker.debian.org/tracker/CVE-2022-27223)\nA flaw was discovered in the udc-xilinx USB gadget-mode controller\n driver. On systems using this driver, a malicious USB host could\n exploit this to cause a denial of service (crash or memory\n corruption) or possibly to execute arbitrary code.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-28356](https://security-tracker.debian.org/tracker/CVE-2022-28356)\nBeraphin discovered that the ANSI/IEEE 802.2 LLC type 2 driver did\n not properly perform reference counting on some error paths. A\n local attacker can take advantage of this flaw to cause a denial\n of service.\n* [CVE-2022-28390](https://security-tracker.debian.org/tracker/CVE-2022-28390)\nA double free vulnerability was discovered in the EMS CPC-USB/ARM7\n CAN/USB interface driver.\n* [CVE-2022-30594](https://security-tracker.debian.org/tracker/CVE-2022-30594)\nJann Horn discovered a flaw in the interaction between ptrace and\n seccomp subsystems. A process sandboxed using seccomp() but still\n permitted to use ptrace() could exploit this to remove the seccomp\n restrictions.\n* [CVE-2022-32250](https://security-tracker.debian.org/tracker/CVE-2022-32250)\nAaron Adams discovered a use-after-free in Netfilter which may\n result in local privilege escalation to root.\n* [CVE-2022-33981](https://security-tracker.debian.org/tracker/CVE-2022-33981)\nYuan Ming from Tsinghua University reported a a race condition in\n the floppy driver involving use of the FDRAWCMD ioctl, which could\n lead to a use-after-free. A local user with access to a floppy\n drive device could exploit this to cause a denial of service\n (crash or memory corruption) or possibly for privilege escalation.\n This ioctl is now disabled by default.\n\n\nFor Debian 9 stretch, these problems have been fixed in version\n4.9.320-2.\n\n\nFor the armhf architecture, this update enables optimised\nimplementations of several cryptographic and CRC algorithms. For at\nleast AES, this should remove a timing side-channel that could lead to\na leak of sensitive information.\n\n\nThis update includes many more bug fixes from stable updates\n4.9.304-4.9.320 inclusive. The random driver has been backported from\nLinux 5.19, fixing numerous performance and correctness issues. Some\nchanges will be visible:\n\n\n- The entropy pool size is now 256 bits instead of 4096. You may need\n to adjust the configuration of system monitoring or user-space\n entropy gathering services to allow for this.\n\n\n- On systems without a hardware RNG, the kernel will log many more\n uses of /dev/urandom before it is fully initialised. These uses\n were previously under-counted and this is not a regression.\n\n\nWe recommend that you upgrade your linux packages.\n\n\nFor the detailed security status of linux please refer to\nits security tracker page at:\n<https://security-tracker.debian.org/tracker/linux>\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2022-07-01T00:00:00", "type": "osv", "title": "linux - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1734", "CVE-2022-1199", "CVE-2022-1198", "CVE-2022-23039", "CVE-2018-1108", "CVE-2022-1975", "CVE-2022-1516", "CVE-2022-1353", "CVE-2022-2153", "CVE-2022-33981", "CVE-2021-39713", "CVE-2022-21125", "CVE-2022-23036", "CVE-2022-1974", "CVE-2022-23042", "CVE-2022-1729", "CVE-2022-32296", "CVE-2022-21166", "CVE-2022-23960", "CVE-2022-28356", "CVE-2022-1011", "CVE-2022-26966", "CVE-2021-4149", "CVE-2022-23037", "CVE-2022-32250", "CVE-2022-1016", "CVE-2022-26490", "CVE-2022-1012", "CVE-2022-0854", "CVE-2022-23040", "CVE-2022-23038", "CVE-2022-27223", "CVE-2022-24958", "CVE-2022-21123", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-30594", "CVE-2022-23041", "CVE-2022-28390"], "modified": "2022-07-21T05:54:14", "id": "OSV:DLA-3065-1", "href": "https://osv.dev/vulnerability/DLA-3065-1", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-10T07:21:01", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\n\n* [CVE-2021-4197](https://security-tracker.debian.org/tracker/CVE-2021-4197)\nEric Biederman reported that incorrect permission checks in the\n cgroup process migration implementation can allow a local attacker\n to escalate privileges.\n* [CVE-2022-0494](https://security-tracker.debian.org/tracker/CVE-2022-0494)\nThe scsi\\_ioctl() was susceptible to an information leak only\n exploitable by users with CAP\\_SYS\\_ADMIN or CAP\\_SYS\\_RAWIO\n capabilities.\n* [CVE-2022-0812](https://security-tracker.debian.org/tracker/CVE-2022-0812)\nIt was discovered that the RDMA transport for NFS (xprtrdma)\n miscalculated the size of message headers, which could lead to a\n leak of sensitive information between NFS servers and clients.\n* [CVE-2022-0854](https://security-tracker.debian.org/tracker/CVE-2022-0854)\nAli Haider discovered a potential information leak in the DMA\n subsystem. On systems where the swiotlb feature is needed, this\n might allow a local user to read sensitive information.\n* [CVE-2022-1011](https://security-tracker.debian.org/tracker/CVE-2022-1011)\nJann Horn discovered a flaw in the FUSE (Filesystem in User-Space)\n implementation. A local user permitted to mount FUSE filesystems\n could exploit this to cause a use-after-free and read sensitive\n information.\n* [CVE-2022-1012](https://security-tracker.debian.org/tracker/CVE-2022-1012),\n [CVE-2022-32296](https://security-tracker.debian.org/tracker/CVE-2022-32296)\nMoshe Kol, Amit Klein, and Yossi Gilad discovered a weakness\n in randomisation of TCP source port selection.\n* [CVE-2022-1016](https://security-tracker.debian.org/tracker/CVE-2022-1016)\nDavid Bouman discovered a flaw in the netfilter subsystem where\n the nft\\_do\\_chain function did not initialize register data that\n nf\\_tables expressions can read from and write to. A local attacker\n can take advantage of this to read sensitive information.\n* [CVE-2022-1048](https://security-tracker.debian.org/tracker/CVE-2022-1048)\nHu Jiahui discovered a race condition in the sound subsystem that\n can result in a use-after-free. A local user permitted to access a\n PCM sound device can take advantage of this flaw to crash the\n system or potentially for privilege escalation.\n* [CVE-2022-1195](https://security-tracker.debian.org/tracker/CVE-2022-1195)\nLin Ma discovered race conditions in the 6pack and mkiss hamradio\n drivers, which could lead to a use-after-free. A local user could\n exploit these to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n* [CVE-2022-1198](https://security-tracker.debian.org/tracker/CVE-2022-1198)\nDuoming Zhou discovered a race condition in the 6pack hamradio\n driver, which could lead to a use-after-free. A local user could\n exploit this to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n* [CVE-2022-1199](https://security-tracker.debian.org/tracker/CVE-2022-1199),\n [CVE-2022-1204](https://security-tracker.debian.org/tracker/CVE-2022-1204),\n [CVE-2022-1205](https://security-tracker.debian.org/tracker/CVE-2022-1205)\nDuoming Zhou discovered race conditions in the AX.25 hamradio\n protocol, which could lead to a use-after-free or null pointer\n dereference. A local user could exploit this to cause a denial of\n service (memory corruption or crash) or possibly for privilege\n escalation.\n* [CVE-2022-1353](https://security-tracker.debian.org/tracker/CVE-2022-1353)\nThe TCS Robot tool found an information leak in the PF\\_KEY\n subsystem. A local user can receive a netlink message when an\n IPsec daemon registers with the kernel, and this could include\n sensitive information.\n* [CVE-2022-1419](https://security-tracker.debian.org/tracker/CVE-2022-1419)\nMinh Yuan discovered a race condition in the vgem virtual GPU\n driver that can lead to a use-after-free. A local user permitted\n to access the GPU device can exploit this to cause a denial of\n service (crash or memory corruption) or possibly for privilege\n escalation.\n* [CVE-2022-1516](https://security-tracker.debian.org/tracker/CVE-2022-1516)\nA NULL pointer dereference flaw in the implementation of the X.25\n set of standardized network protocols, which can result in denial\n of service.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-1652](https://security-tracker.debian.org/tracker/CVE-2022-1652)\nMinh Yuan discovered a race condition in the floppy driver that\n can lead to a use-after-free. A local user permitted to access a\n floppy drive device can exploit this to cause a denial of service\n (crash or memory corruption) or possibly for privilege escalation.\n* [CVE-2022-1729](https://security-tracker.debian.org/tracker/CVE-2022-1729)\nNorbert Slusarek discovered a race condition in the perf subsystem\n which could result in local privilege escalation to root. The\n default settings in Debian prevent exploitation unless more\n permissive settings have been applied in the\n kernel.perf\\_event\\_paranoid sysctl.\n* [CVE-2022-1734](https://security-tracker.debian.org/tracker/CVE-2022-1734)\nDuoming Zhou discovered race conditions in the nfcmrvl NFC driver\n that could lead to a use-after-free, double-free or null pointer\n dereference. A local user might be able to exploit these for\n denial of service (crash or memory corruption) or possibly for\n privilege escalation.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-1974](https://security-tracker.debian.org/tracker/CVE-2022-1974),\n [CVE-2022-1975](https://security-tracker.debian.org/tracker/CVE-2022-1975)\nDuoming Zhou discovered that the NFC netlink interface was\n suspectible to denial of service.\n* [CVE-2022-2153](https://security-tracker.debian.org/tracker/CVE-2022-2153)\nkangel reported a flaw in the KVM implementation for x86\n processors which could lead to a null pointer dereference. A local\n user permitted to access /dev/kvm could exploit this to cause a\n denial of service (crash).\n* [CVE-2022-21123](https://security-tracker.debian.org/tracker/CVE-2022-21123),\n [CVE-2022-21125](https://security-tracker.debian.org/tracker/CVE-2022-21125),\n [CVE-2022-21166](https://security-tracker.debian.org/tracker/CVE-2022-21166)\nVarious researchers discovered flaws in Intel x86 processors,\n collectively referred to as MMIO Stale Data vulnerabilities.\n These are similar to the previously published Microarchitectural\n Data Sampling (MDS) issues and could be exploited by local users\n to leak sensitive information.\n\n\nFor some CPUs, the mitigations for these issues require updated\n microcode. An updated intel-microcode package may be provided at\n a later date. The updated CPU microcode may also be available as\n part of a system firmware (\"BIOS\") update.\n\n\nFurther information on the mitigation can be found at\n \n or in the linux-doc-4.19 package.\n* [CVE-2022-23960](https://security-tracker.debian.org/tracker/CVE-2022-23960)\nResearchers at VUSec discovered that the Branch History Buffer in\n Arm processors can be exploited to create information side\n channels with speculative execution. This issue is similar to\n Spectre variant 2, but requires additional mitigations on some\n processors.\n\n\nThis was previously mitigated for 32-bit Arm (armel and armhf)\n architectures and is now also mitigated for 64-bit Arm (arm64).\n\n\nThis can be exploited to obtain sensitive information from a\n different security context, such as from user-space to the kernel,\n or from a KVM guest to the kernel.\n* [CVE-2022-26490](https://security-tracker.debian.org/tracker/CVE-2022-26490)\nBuffer overflows in the STMicroelectronics ST21NFCA core driver\n can result in denial of service or privilege escalation.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-27666](https://security-tracker.debian.org/tracker/CVE-2022-27666)\nvalis reported a possible buffer overflow in the IPsec ESP\n transformation code. A local user can take advantage of this flaw\n to cause a denial of service or for privilege escalation.\n* [CVE-2022-28356](https://security-tracker.debian.org/tracker/CVE-2022-28356)\nBeraphin discovered that the ANSI/IEEE 802.2 LLC type 2 driver did\n not properly perform reference counting on some error paths. A\n local attacker can take advantage of this flaw to cause a denial\n of service.\n* [CVE-2022-28388](https://security-tracker.debian.org/tracker/CVE-2022-28388)\nA double free vulnerability was discovered in the 8 devices\n USB2CAN interface driver.\n* [CVE-2022-28389](https://security-tracker.debian.org/tracker/CVE-2022-28389)\nA double free vulnerability was discovered in the Microchip CAN\n BUS Analyzer interface driver.\n* [CVE-2022-28390](https://security-tracker.debian.org/tracker/CVE-2022-28390)\nA double free vulnerability was discovered in the EMS CPC-USB/ARM7\n CAN/USB interface driver.\n* [CVE-2022-29581](https://security-tracker.debian.org/tracker/CVE-2022-29581)\nKyle Zeng discovered a reference-counting bug in the cls\\_u32\n network classifier which can lead to a use-after-free. A local\n user can exploit this to cause a denial of service (crash or\n memory corruption) or possibly for privilege escalation.\n* [CVE-2022-30594](https://security-tracker.debian.org/tracker/CVE-2022-30594)\nJann Horn discovered a flaw in the interaction between ptrace and\n seccomp subsystems. A process sandboxed using seccomp() but still\n permitted to use ptrace() could exploit this to remove the seccomp\n restrictions.\n* [CVE-2022-32250](https://security-tracker.debian.org/tracker/CVE-2022-32250)\nAaron Adams discovered a use-after-free in Netfilter which may\n result in local privilege escalation to root.\n* [CVE-2022-33981](https://security-tracker.debian.org/tracker/CVE-2022-33981)\nYuan Ming from Tsinghua University reported a race condition in\n the floppy driver involving use of the FDRAWCMD ioctl, which could\n lead to a use-after-free. A local user with access to a floppy\n drive device could exploit this to cause a denial of service\n (crash or memory corruption) or possibly for privilege escalation.\n This ioctl is now disabled by default.\n\n\nFor the oldstable distribution (buster), these problems have been\nfixed in version 4.19.249-2.\n\n\nDue to an issue in the signing service (Cf. Debian bug #1012741), the\nvport-vxlan module cannot be loaded for the signed kernel for amd64 in\nthis update.\n\n\nThis update also corrects a regression in the network scheduler\nsubsystem (bug #1013299).\n\n\nFor the 32-bit Arm (armel and armhf) architectures, this update\nenables optimised implementations of several cryptographic and CRC\nalgorithms. For at least AES, this should remove a timing sidechannel \nthat could lead to a leak of sensitive information.\n\n\nThis update includes many more bug fixes from stable updates\n4.19.236-4.19.249 inclusive, including for bug #1006346. The random\ndriver has been backported from Linux 5.19, fixing numerous\nperformance and correctness issues. Some changes will be visible:\n\n\n* The entropy pool size is now 256 bits instead of 4096. You may need\n to adjust the configuration of system monitoring or user-space\n entropy gathering services to allow for this.\n* On systems without a hardware RNG, the kernel may log more uses of\n /dev/urandom before it is fully initialised. These uses were\n previously under-counted and this is not a regression.\n\n\nWe recommend that you upgrade your linux packages.\n\n\nFor the detailed security status of linux please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/linux](https://security-tracker.debian.org/tracker/linux)\n\n\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2022-07-03T00:00:00", "type": "osv", "title": "linux - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1734", "CVE-2022-1199", "CVE-2022-1198", "CVE-2022-1975", "CVE-2022-1516", "CVE-2022-1353", "CVE-2022-2153", "CVE-2022-33981", "CVE-2022-21125", "CVE-2022-1974", "CVE-2022-1729", "CVE-2022-32296", "CVE-2022-21166", "CVE-2022-23960", "CVE-2022-1652", "CVE-2022-28356", "CVE-2022-1011", "CVE-2022-32250", "CVE-2022-1016", "CVE-2022-27666", "CVE-2022-1419", "CVE-2022-26490", "CVE-2022-1012", "CVE-2022-1048", "CVE-2022-0854", "CVE-2022-1205", "CVE-2022-29581", "CVE-2021-4197", "CVE-2022-28388", "CVE-2022-21123", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-1195", "CVE-2022-30594", "CVE-2022-28389", "CVE-2022-1204", "CVE-2022-28390"], "modified": "2022-08-10T07:20:59", "id": "OSV:DSA-5173-1", "href": "https://osv.dev/vulnerability/DSA-5173-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-09-14T21:10:07", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\n\n* [CVE-2022-0494](https://security-tracker.debian.org/tracker/CVE-2022-0494)\nThe scsi\\_ioctl() was susceptible to an information leak only\n exploitable by users with CAP\\_SYS\\_ADMIN or CAP\\_SYS\\_RAWIO\n capabilities.\n* [CVE-2022-0854](https://security-tracker.debian.org/tracker/CVE-2022-0854)\nAli Haider discovered a potential information leak in the DMA\n subsystem. On systems where the swiotlb feature is needed, this\n might allow a local user to read sensitive information.\n* [CVE-2022-1012](https://security-tracker.debian.org/tracker/CVE-2022-1012)\nThe randomisation when calculating port offsets in the IP\n implementation was enhanced.\n* [CVE-2022-1729](https://security-tracker.debian.org/tracker/CVE-2022-1729)\nNorbert Slusarek discovered a race condition in the perf subsystem\n which could result in local privilege escalation to root. The\n default settings in Debian prevent exploitation unless more\n permissive settings have been applied in the\n kernel.perf\\_event\\_paranoid sysctl.\n* [CVE-2022-1786](https://security-tracker.debian.org/tracker/CVE-2022-1786)\nKyle Zeng discovered a use-after-free in the io\\_uring subsystem\n which way result in local privilege escalation to root.\n* [CVE-2022-1789](https://security-tracker.debian.org/tracker/CVE-2022-1789) /\n [CVE-2022-1852](https://security-tracker.debian.org/tracker/CVE-2022-1852)\nYongkang Jia, Gaoning Pan and Qiuhao Li discovered two NULL pointer\n dereferences in KVM's CPU instruction handling, resulting in denial\n of service.\n* [CVE-2022-32250](https://security-tracker.debian.org/tracker/CVE-2022-32250)\nAaron Adams discovered a use-after-free in Netfilter which may\n result in local privilege escalation to root.\n* [CVE-2022-1974](https://security-tracker.debian.org/tracker/CVE-2022-1974) /\n [CVE-2022-1975](https://security-tracker.debian.org/tracker/CVE-2022-1975)\nDuoming Zhou discovered that the NFC netlink interface was\n suspectible to denial of service.\n* [CVE-2022-2078](https://security-tracker.debian.org/tracker/CVE-2022-2078)\nZiming Zhang discovered an out-of-bound write in Netfilter which may\n result in local privilege escalation to root.\n* [CVE-2022-21499](https://security-tracker.debian.org/tracker/CVE-2022-21499)\nIt was discovered that the kernel debugger could be used to bypass\n UEFI Secure Boot restrictions.\n* [CVE-2022-28893](https://security-tracker.debian.org/tracker/CVE-2022-28893)\nFelix Fu discovered a use-after-free in the implementation of the\n Remote Procedure Call (SunRPC) protocol, which could result in denial of\n service or an information leak.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 5.10.120-1.\n\n\nWe recommend that you upgrade your linux packages.\n\n\nFor the detailed security status of linux please refer to its security\ntracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/linux](https://security-tracker.debian.org/tracker/linux)\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 9.1, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.2}, "published": "2022-06-11T00:00:00", "type": "osv", "title": "linux - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1975", "CVE-2022-28893", "CVE-2022-1974", "CVE-2022-1729", "CVE-2022-32250", "CVE-2022-1789", "CVE-2022-1852", "CVE-2022-1012", "CVE-2022-1786", "CVE-2022-0854", "CVE-2022-0494", "CVE-2022-21499", "CVE-2022-2078"], "modified": "2022-09-14T21:10:05", "id": "OSV:DSA-5161-1", "href": "https://osv.dev/vulnerability/DSA-5161-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-08-10T07:20:58", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\n\n* [CVE-2021-4197](https://security-tracker.debian.org/tracker/CVE-2021-4197)\nEric Biederman reported that incorrect permission checks in the\n cgroup process migration implementation can allow a local attacker\n to escalate privileges.\n* [CVE-2022-0168](https://security-tracker.debian.org/tracker/CVE-2022-0168)\nA NULL pointer dereference flaw was found in the CIFS client\n implementation which can allow a local attacker with CAP\\_SYS\\_ADMIN\n privileges to crash the system. The security impact is negligible as\n CAP\\_SYS\\_ADMIN inherently gives the ability to deny service.\n* [CVE-2022-1016](https://security-tracker.debian.org/tracker/CVE-2022-1016)\nDavid Bouman discovered a flaw in the netfilter subsystem where the\n nft\\_do\\_chain function did not initialize register data that\n nf\\_tables expressions can read from and write to. A local attacker\n can take advantage of this to read sensitive information.\n* [CVE-2022-1048](https://security-tracker.debian.org/tracker/CVE-2022-1048)\nHu Jiahui discovered a race condition in the sound subsystem that\n can result in a use-after-free. A local user permitted to access a\n PCM sound device can take advantage of this flaw to crash the\n system or potentially for privilege escalation.\n* [CVE-2022-1158](https://security-tracker.debian.org/tracker/CVE-2022-1158)\nQiuhao Li, Gaoning Pan, and Yongkang Jia discovered a bug in the\n KVM implementation for x86 processors. A local user with access to\n /dev/kvm could cause the MMU emulator to update page table entry\n flags at the wrong address. They could exploit this to cause a\n denial of service (memory corruption or crash) or possibly for\n privilege escalation.\n* [CVE-2022-1195](https://security-tracker.debian.org/tracker/CVE-2022-1195)\nLin Ma discovered race conditions in the 6pack and mkiss hamradio\n drivers, which could lead to a use-after-free. A local user could\n exploit these to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n* [CVE-2022-1198](https://security-tracker.debian.org/tracker/CVE-2022-1198)\nDuoming Zhou discovered a race condition in the 6pack hamradio\n driver, which could lead to a use-after-free. A local user could\n exploit this to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n* [CVE-2022-1199](https://security-tracker.debian.org/tracker/CVE-2022-1199),\n [CVE-2022-1204](https://security-tracker.debian.org/tracker/CVE-2022-1204),\n [CVE-2022-1205](https://security-tracker.debian.org/tracker/CVE-2022-1205)\nDuoming Zhou discovered race conditions in the AX.25 hamradio\n protocol, which could lead to a use-after-free or null pointer\n dereference. A local user could exploit this to cause a denial of\n service (memory corruption or crash) or possibly for privilege\n escalation.\n* [CVE-2022-1353](https://security-tracker.debian.org/tracker/CVE-2022-1353)\nThe TCS Robot tool found an information leak in the PF\\_KEY\n subsystem. A local user can receive a netlink message when an\n IPsec daemon registers with the kernel, and this could include\n sensitive information.\n* [CVE-2022-1516](https://security-tracker.debian.org/tracker/CVE-2022-1516)\nA NULL pointer dereference flaw in the implementation of the X.25\n set of standardized network protocols, which can result in denial\n of service.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-26490](https://security-tracker.debian.org/tracker/CVE-2022-26490)\nBuffer overflows in the STMicroelectronics ST21NFCA core driver can\n result in denial of service or privilege escalation.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-27666](https://security-tracker.debian.org/tracker/CVE-2022-27666)\nvalis reported a possible buffer overflow in the IPsec ESP\n transformation code. A local user can take advantage of this flaw to\n cause a denial of service or for privilege escalation.\n* [CVE-2022-28356](https://security-tracker.debian.org/tracker/CVE-2022-28356)\nBeraphin discovered that the ANSI/IEEE 802.2 LLC type 2 driver did\n not properly perform reference counting on some error paths. A\n local attacker can take advantage of this flaw to cause a denial\n of service.\n* [CVE-2022-28388](https://security-tracker.debian.org/tracker/CVE-2022-28388)\nA double free vulnerability was discovered in the 8 devices USB2CAN\n interface driver.\n* [CVE-2022-28389](https://security-tracker.debian.org/tracker/CVE-2022-28389)\nA double free vulnerability was discovered in the Microchip CAN BUS\n Analyzer interface driver.\n* [CVE-2022-28390](https://security-tracker.debian.org/tracker/CVE-2022-28390)\nA double free vulnerability was discovered in the EMS CPC-USB/ARM7\n CAN/USB interface driver.\n* [CVE-2022-29582](https://security-tracker.debian.org/tracker/CVE-2022-29582)\nJayden Rivers and David Bouman discovered a user-after-free\n vulnerability in the io\\_uring subystem due to a race condition in\n io\\_uring timeouts. A local unprivileged user can take advantage of\n this flaw for privilege escalation.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 5.10.113-1.\n\n\nWe recommend that you upgrade your linux packages.\n\n\nFor the detailed security status of linux please refer to its security\ntracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/linux](https://security-tracker.debian.org/tracker/linux)\n\n\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2022-05-02T00:00:00", "type": "osv", "title": "linux - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1199", "CVE-2022-1198", "CVE-2022-1158", "CVE-2022-1516", "CVE-2022-1353", "CVE-2022-28356", "CVE-2022-29582", "CVE-2022-1016", "CVE-2022-27666", "CVE-2022-26490", "CVE-2022-1048", "CVE-2022-1205", "CVE-2021-4197", "CVE-2022-28388", "CVE-2022-1195", "CVE-2022-28389", "CVE-2022-0168", "CVE-2022-1204", "CVE-2022-28390"], "modified": "2022-08-10T07:20:53", "id": "OSV:DSA-5127-1", "href": "https://osv.dev/vulnerability/DSA-5127-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "debian": [{"lastseen": "2023-03-21T17:38:20", "description": "-------------------------------------------------------------------------\nDebian LTS Advisory DLA-3065-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Ben Hutchings\nJune 30, 2022 https://wiki.debian.org/LTS\n-------------------------------------------------------------------------\n\nPackage : linux\nVersion : 4.9.320-2\nCVE ID : CVE-2018-1108 CVE-2021-4149 CVE-2021-39713 CVE-2022-0494\n CVE-2022-0812 CVE-2022-0854 CVE-2022-1011 CVE-2022-1012\n CVE-2022-1016 CVE-2022-1198 CVE-2022-1199 CVE-2022-1353\n CVE-2022-1516 CVE-2022-1729 CVE-2022-1734 CVE-2022-1974\n CVE-2022-1975 CVE-2022-2153 CVE-2022-21123 CVE-2022-21125\n CVE-2022-21166 CVE-2022-23036 CVE-2022-23037 CVE-2022-23038\n CVE-2022-23039 CVE-2022-23040 CVE-2022-23041 CVE-2022-23042\n CVE-2022-23960 CVE-2022-24958 CVE-2022-26490 CVE-2022-26966\n CVE-2022-27223 CVE-2022-28356 CVE-2022-28390 CVE-2022-30594\n CVE-2022-32250 CVE-2022-32296 CVE-2022-33981\nDebian Bug : 922204\n\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\nThis update is unfortunately not available for the armel architecture.\n\nCVE-2018-1108\n\n It was discovered that the random driver could generate random\n bytes through /dev/random and the getrandom() system call before\n gathering enough entropy that these would be unpredictable. This\n could compromise the confidentiality and integrity of encrypted\n communications.\n\n The original fix for this issue had to be reverted because it\n caused the boot process to hang on many systems. In this version,\n the random driver has been updated, making it more effective in\n gathering entropy without needing a hardware RNG.\n\nCVE-2021-4149\n\n Hao Sun reported a flaw in the Btrfs fileysstem driver. There\n is a potential lock imbalance in an error path. A local user\n might be able to exploit this for denial of service.\n\nCVE-2021-39713\n\n The syzbot tool found a race condition in the network scheduling\n subsystem which could lead to a use-after-free. A local user\n could exploit this for denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n\nCVE-2022-0494\n\n The scsi_ioctl() was susceptible to an information leak only\n exploitable by users with CAP_SYS_ADMIN or CAP_SYS_RAWIO\n capabilities.\n\nCVE-2022-0812\n\n It was discovered that the RDMA transport for NFS (xprtrdma)\n miscalculated the size of message headers, which could lead to a\n leak of sensitive information between NFS servers and clients.\n\nCVE-2022-0854\n\n Ali Haider discovered a potential information leak in the DMA\n subsystem. On systems where the swiotlb feature is needed, this\n might allow a local user to read sensitive information.\n\nCVE-2022-1011\n\n Jann Horn discovered a flaw in the FUSE (Filesystem in User-Space)\n implementation. A local user permitted to mount FUSE filesystems\n could exploit this to cause a use-after-free and read sensitive\n information.\n\nCVE-2022-1012, CVE-2022-32296\n\n Moshe Kol, Amit Klein, and Yossi Gilad discovered a weakness\n in randomisation of TCP source port selection.\n\nCVE-2022-1016\n\n David Bouman discovered a flaw in the netfilter subsystem where\n the nft_do_chain function did not initialize register data that\n nf_tables expressions can read from and write to. A local attacker\n can take advantage of this to read sensitive information.\n\nCVE-2022-1198\n\n Duoming Zhou discovered a race condition in the 6pack hamradio\n driver, which could lead to a use-after-free. A local user could\n exploit this to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n\nCVE-2022-1199\n\n Duoming Zhou discovered race conditions in the AX.25 hamradio\n protocol, which could lead to a use-after-free or null pointer\n dereference. A local user could exploit this to cause a denial of\n service (memory corruption or crash) or possibly for privilege\n escalation.\n\nCVE-2022-1353\n\n The TCS Robot tool found an information leak in the PF_KEY\n subsystem. A local user can receive a netlink message when an\n IPsec daemon registers with the kernel, and this could include\n sensitive information.\n\nCVE-2022-1516\n\n A NULL pointer dereference flaw in the implementation of the X.25\n set of standardized network protocols, which can result in denial\n of service.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-1729\n\n Norbert Slusarek discovered a race condition in the perf subsystem\n which could result in local privilege escalation to root. The\n default settings in Debian prevent exploitation unless more\n permissive settings have been applied in the\n kernel.perf_event_paranoid sysctl.\n\nCVE-2022-1734\n\n Duoming Zhou discovered race conditions in the nfcmrvl NFC driver\n that could lead to a use-after-free, double-free or null pointer\n dereference. A local user might be able to exploit these for\n denial of service (crash or memory corruption) or possibly for\n privilege escalation.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-1974, CVE-2022-1975\n\n Duoming Zhou discovered that the NFC netlink interface was\n suspectible to denial of service.\n\nCVE-2022-2153\n\n "kangel" reported a flaw in the KVM implementation for x86\n processors which could lead to a null pointer dereference. A local\n user permitted to access /dev/kvm could exploit this to cause a\n denial of service (crash).\n\nCVE-2022-21123, CVE-2022-21125, CVE-2022-21166\n\n Various researchers discovered flaws in Intel x86 processors,\n collectively referred to as MMIO Stale Data vulnerabilities.\n These are similar to the previously published Microarchitectural\n Data Sampling (MDS) issues and could be exploited by local users\n to leak sensitive information.\n\n For some CPUs, the mitigations for these issues require updated\n microcode. An updated intel-microcode package may be provided at\n a later date. The updated CPU microcode may also be available as\n part of a system firmware ("BIOS") update.\n\n Further information on the mitigation can be found at\n <https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html>\n or in the linux-doc-4.9 package.\n\nCVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039,\nCVE-2022-23040, CVE-2022-23041, CVE-2022-23042 (XSA-396)\n\n Demi Marie Obenour and Simon Gaiser of Invisible Things Lab\n discovered flaws in several Xen PV device frontends. These drivers\n misused the Xen grant table API in a way that could be exploited\n by a malicious device backend to cause data corruption, leaks of\n sensitive information, or a denial of service (crash).\n\nCVE-2022-23960\n\n Researchers at VUSec discovered that the Branch History Buffer in\n Arm processors can be exploited to create information side-\n channels with speculative execution. This issue is similar to\n Spectre variant 2, but requires additional mitigations on some\n processors.\n\n This can be exploited to obtain sensitive information from a\n different security context, such as from user-space to the kernel,\n or from a KVM guest to the kernel.\n\nCVE-2022-24958\n\n A flaw was discovered that the USB gadget subsystem that could\n lead to a use-after-free. A local user permitted to configure USB\n gadgets could exploit this to cause a denial of service (crash or\n memory corruption) or possibly for privilege escalation.\n\nCVE-2022-26490\n\n Buffer overflows in the STMicroelectronics ST21NFCA core driver\n can result in denial of service or privilege escalation.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-26966\n\n A flaw was discovered in the sr9700 USB networking driver. A local\n user able to attach a specially designed USB device could use this\n to leak sensitive information.\n\nCVE-2022-27223\n\n A flaw was discovered in the udc-xilinx USB gadget-mode controller\n driver. On systems using this driver, a malicious USB host could\n exploit this to cause a denial of service (crash or memory\n corruption) or possibly to execute arbitrary code.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-28356\n\n "Beraphin" discovered that the ANSI/IEEE 802.2 LLC type 2 driver did\n not properly perform reference counting on some error paths. A\n local attacker can take advantage of this flaw to cause a denial\n of service.\n\nCVE-2022-28390\n\n A double free vulnerability was discovered in the EMS CPC-USB/ARM7\n CAN/USB interface driver.\n\nCVE-2022-30594\n\n Jann Horn discovered a flaw in the interaction between ptrace and\n seccomp subsystems. A process sandboxed using seccomp() but still\n permitted to use ptrace() could exploit this to remove the seccomp\n restrictions.\n\nCVE-2022-32250\n\n Aaron Adams discovered a use-after-free in Netfilter which may\n result in local privilege escalation to root.\n\nCVE-2022-33981\n\n Yuan Ming from Tsinghua University reported a a race condition in\n the floppy driver involving use of the FDRAWCMD ioctl, which could\n lead to a use-after-free. A local user with access to a floppy\n drive device could exploit this to cause a denial of service\n (crash or memory corruption) or possibly for privilege escalation.\n This ioctl is now disabled by default.\n\nFor Debian 9 stretch, these problems have been fixed in version\n4.9.320-2.\n\nFor the armhf architecture, this update enables optimised\nimplementations of several cryptographic and CRC algorithms. For at\nleast AES, this should remove a timing side-channel that could lead to\na leak of sensitive information.\n\nThis update includes many more bug fixes from stable updates\n4.9.304-4.9.320 inclusive. The random driver has been backported from\nLinux 5.19, fixing numerous performance and correctness issues. Some\nchanges will be visible:\n\n- The entropy pool size is now 256 bits instead of 4096. You may need\n to adjust the configuration of system monitoring or user-space\n entropy gathering services to allow for this.\n\n- On systems without a hardware RNG, the kernel will log many more\n uses of /dev/urandom before it is fully initialised. These uses\n were previously under-counted and this is not a regression.\n\nWe recommend that you upgrade your linux packages.\n\nFor the detailed security status of linux please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/linux\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS\nAttachment:\nsignature.asc\nDescription: PGP signature\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-07-01T11:40:50", "type": "debian", "title": "[SECURITY] [DLA 3065-1] linux security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1108", "CVE-2021-39713", "CVE-2021-4149", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-0854", "CVE-2022-1011", "CVE-2022-1012", "CVE-2022-1016", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1353", "CVE-2022-1516", "CVE-2022-1729", "CVE-2022-1734", "CVE-2022-1974", "CVE-2022-1975", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-2153", "CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042", "CVE-2022-23960", "CVE-2022-24958", "CVE-2022-26490", "CVE-2022-26966", "CVE-2022-27223", "CVE-2022-28356", "CVE-2022-28390", "CVE-2022-30594", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-33981"], "modified": "2022-07-01T11:40:50", "id": "DEBIAN:DLA-3065-1:C1710", "href": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-02-24T14:13:26", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5173-1 security@debian.org\nhttps://www.debian.org/security/ Ben Hutchings\nJuly 03, 2022 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : linux\nCVE ID : CVE-2021-4197 CVE-2022-0494 CVE-2022-0812 CVE-2022-0854\n CVE-2022-1011 CVE-2022-1012 CVE-2022-1016 CVE-2022-1048\n CVE-2022-1184 CVE-2022-1195 CVE-2022-1198 CVE-2022-1199\n CVE-2022-1204 CVE-2022-1205 CVE-2022-1353 CVE-2022-1419\n CVE-2022-1516 CVE-2022-1652 CVE-2022-1729 CVE-2022-1734\n CVE-2022-1974 CVE-2022-1975 CVE-2022-2153 CVE-2022-21123\n CVE-2022-21125 CVE-2022-21166 CVE-2022-23960 CVE-2022-26490\n CVE-2022-27666 CVE-2022-28356 CVE-2022-28388 CVE-2022-28389\n CVE-2022-28390 CVE-2022-29581 CVE-2022-30594 CVE-2022-32250\n CVE-2022-32296 CVE-2022-33981\nDebian Bug : 922204 1006346 1013299\n\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\nCVE-2021-4197\n\n Eric Biederman reported that incorrect permission checks in the\n cgroup process migration implementation can allow a local attacker\n to escalate privileges.\n\nCVE-2022-0494\n\n The scsi_ioctl() was susceptible to an information leak only\n exploitable by users with CAP_SYS_ADMIN or CAP_SYS_RAWIO\n capabilities.\n\nCVE-2022-0812\n\n It was discovered that the RDMA transport for NFS (xprtrdma)\n miscalculated the size of message headers, which could lead to a\n leak of sensitive information between NFS servers and clients.\n\nCVE-2022-0854\n\n Ali Haider discovered a potential information leak in the DMA\n subsystem. On systems where the swiotlb feature is needed, this\n might allow a local user to read sensitive information.\n\nCVE-2022-1011\n\n Jann Horn discovered a flaw in the FUSE (Filesystem in User-Space)\n implementation. A local user permitted to mount FUSE filesystems\n could exploit this to cause a use-after-free and read sensitive\n information.\n\nCVE-2022-1012, CVE-2022-32296\n\n Moshe Kol, Amit Klein, and Yossi Gilad discovered a weakness\n in randomisation of TCP source port selection.\n\nCVE-2022-1016\n\n David Bouman discovered a flaw in the netfilter subsystem where\n the nft_do_chain function did not initialize register data that\n nf_tables expressions can read from and write to. A local attacker\n can take advantage of this to read sensitive information.\n\nCVE-2022-1048\n\n Hu Jiahui discovered a race condition in the sound subsystem that\n can result in a use-after-free. A local user permitted to access a\n PCM sound device can take advantage of this flaw to crash the\n system or potentially for privilege escalation.\n\nCVE-2022-1184\n\n A flaw was discovered in the ext4 filesystem driver which can lead\n to a use-after-free. A local user permitted to mount arbitrary\n filesystems could exploit this to cause a denial of service (crash\n or memory corruption) or possibly for privilege escalation.\n\nCVE-2022-1195\n\n Lin Ma discovered race conditions in the 6pack and mkiss hamradio\n drivers, which could lead to a use-after-free. A local user could\n exploit these to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n\nCVE-2022-1198\n\n Duoming Zhou discovered a race condition in the 6pack hamradio\n driver, which could lead to a use-after-free. A local user could\n exploit this to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n\nCVE-2022-1199, CVE-2022-1204, CVE-2022-1205\n\n Duoming Zhou discovered race conditions in the AX.25 hamradio\n protocol, which could lead to a use-after-free or null pointer\n dereference. A local user could exploit this to cause a denial of\n service (memory corruption or crash) or possibly for privilege\n escalation.\n\nCVE-2022-1353\n\n The TCS Robot tool found an information leak in the PF_KEY\n subsystem. A local user can receive a netlink message when an\n IPsec daemon registers with the kernel, and this could include\n sensitive information.\n\nCVE-2022-1419\n\n Minh Yuan discovered a race condition in the vgem virtual GPU\n driver that can lead to a use-after-free. A local user permitted\n to access the GPU device can exploit this to cause a denial of\n service (crash or memory corruption) or possibly for privilege\n escalation.\n\nCVE-2022-1516\n\n A NULL pointer dereference flaw in the implementation of the X.25\n set of standardized network protocols, which can result in denial\n of service.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-1652\n\n Minh Yuan discovered a race condition in the floppy driver that\n can lead to a use-after-free. A local user permitted to access a\n floppy drive device can exploit this to cause a denial of service\n (crash or memory corruption) or possibly for privilege escalation.\n\nCVE-2022-1729\n\n Norbert Slusarek discovered a race condition in the perf subsystem\n which could result in local privilege escalation to root. The\n default settings in Debian prevent exploitation unless more\n permissive settings have been applied in the\n kernel.perf_event_paranoid sysctl.\n\nCVE-2022-1734\n\n Duoming Zhou discovered race conditions in the nfcmrvl NFC driver\n that could lead to a use-after-free, double-free or null pointer\n dereference. A local user might be able to exploit these for\n denial of service (crash or memory corruption) or possibly for\n privilege escalation.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-1974, CVE-2022-1975\n\n Duoming Zhou discovered that the NFC netlink interface was\n suspectible to denial of service.\n\nCVE-2022-2153\n\n "kangel" reported a flaw in the KVM implementation for x86\n processors which could lead to a null pointer dereference. A local\n user permitted to access /dev/kvm could exploit this to cause a\n denial of service (crash).\n\nCVE-2022-21123, CVE-2022-21125, CVE-2022-21166\n\n Various researchers discovered flaws in Intel x86 processors,\n collectively referred to as MMIO Stale Data vulnerabilities.\n These are similar to the previously published Microarchitectural\n Data Sampling (MDS) issues and could be exploited by local users\n to leak sensitive information.\n\n For some CPUs, the mitigations for these issues require updated\n microcode. An updated intel-microcode package may be provided at\n a later date. The updated CPU microcode may also be available as\n part of a system firmware ("BIOS") update.\n\n Further information on the mitigation can be found at\n <https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html>\n or in the linux-doc-4.19 package.\n\nCVE-2022-23960\n\n Researchers at VUSec discovered that the Branch History Buffer in\n Arm processors can be exploited to create information side-\n channels with speculative execution. This issue is similar to\n Spectre variant 2, but requires additional mitigations on some\n processors.\n\n This was previously mitigated for 32-bit Arm (armel and armhf)\n architectures and is now also mitigated for 64-bit Arm (arm64).\n\n This can be exploited to obtain sensitive information from a\n different security context, such as from user-space to the kernel,\n or from a KVM guest to the kernel.\n\nCVE-2022-26490\n\n Buffer overflows in the STMicroelectronics ST21NFCA core driver\n can result in denial of service or privilege escalation.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-27666\n\n "valis" reported a possible buffer overflow in the IPsec ESP\n transformation code. A local user can take advantage of this flaw\n to cause a denial of service or for privilege escalation.\n\nCVE-2022-28356\n\n "Beraphin" discovered that the ANSI/IEEE 802.2 LLC type 2 driver did\n not properly perform reference counting on some error paths. A\n local attacker can take advantage of this flaw to cause a denial\n of service.\n\nCVE-2022-28388\n\n A double free vulnerability was discovered in the 8 devices\n USB2CAN interface driver.\n\nCVE-2022-28389\n\n A double free vulnerability was discovered in the Microchip CAN\n BUS Analyzer interface driver.\n\nCVE-2022-28390\n\n A double free vulnerability was discovered in the EMS CPC-USB/ARM7\n CAN/USB interface driver.\n\nCVE-2022-29581\n\n Kyle Zeng discovered a reference-counting bug in the cls_u32\n network classifier which can lead to a use-after-free. A local\n user can exploit this to cause a denial of service (crash or\n memory corruption) or possibly for privilege escalation.\n\nCVE-2022-30594\n\n Jann Horn discovered a flaw in the interaction between ptrace and\n seccomp subsystems. A process sandboxed using seccomp() but still\n permitted to use ptrace() could exploit this to remove the seccomp\n restrictions.\n\nCVE-2022-32250\n\n Aaron Adams discovered a use-after-free in Netfilter which may\n result in local privilege escalation to root.\n\nCVE-2022-33981\n\n Yuan Ming from Tsinghua University reported a race condition in\n the floppy driver involving use of the FDRAWCMD ioctl, which could\n lead to a use-after-free. A local user with access to a floppy\n drive device could exploit this to cause a denial of service\n (crash or memory corruption) or possibly for privilege escalation.\n This ioctl is now disabled by default.\n\nFor the oldstable distribution (buster), these problems have been\nfixed in version 4.19.249-2.\n\nDue to an issue in the signing service (Cf. Debian bug #1012741), the\nvport-vxlan module cannot be loaded for the signed kernel for amd64 in\nthis update.\n\nThis update also corrects a regression in the network scheduler\nsubsystem (bug #1013299).\n\nFor the 32-bit Arm (armel and armhf) architectures, this update\nenables optimised implementations of several cryptographic and CRC\nalgorithms. For at least AES, this should remove a timing side-\nchannel that could lead to a leak of sensitive information.\n\nThis update includes many more bug fixes from stable updates\n4.19.236-4.19.249 inclusive, including for bug #1006346. The random\ndriver has been backported from Linux 5.19, fixing numerous\nperformance and correctness issues. Some changes will be visible:\n\n- - The entropy pool size is now 256 bits instead of 4096. You may need\n to adjust the configuration of system monitoring or user-space\n entropy gathering services to allow for this.\n\n- - On systems without a hardware RNG, the kernel may log more uses of\n /dev/urandom before it is fully initialised. These uses were\n previously under-counted and this is not a regression.\n\nWe recommend that you upgrade your linux packages.\n\nFor the detailed security status of linux please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/linux\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.2}, "published": "2022-07-03T15:49:12", "type": "debian", "title": "[SECURITY] [DSA 5173-1] linux security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-4197", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-0854", "CVE-2022-1011", "CVE-2022-1012", "CVE-2022-1016", "CVE-2022-1048", "CVE-2022-1184", "CVE-2022-1195", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1204", "CVE-2022-1205", "CVE-2022-1353", "CVE-2022-1419", "CVE-2022-1516", "CVE-2022-1652", "CVE-2022-1729", "CVE-2022-1734", "CVE-2022-1974", "CVE-2022-1975", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-2153", "CVE-2022-23960", "CVE-2022-26490", "CVE-2022-27666", "CVE-2022-28356", "CVE-2022-28388", "CVE-2022-28389", "CVE-2022-28390", "CVE-2022-29581", "CVE-2022-30594", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-33981"], "modified": "2022-07-03T15:49:12", "id": "DEBIAN:DSA-5173-1:5A28E", "href": "https://lists.debian.org/debian-security-announce/2022/msg00141.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-02-24T11:07:48", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5127-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nMay 02, 2022 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : linux\nCVE ID : CVE-2021-4197 CVE-2022-0168 CVE-2022-1016 CVE-2022-1048\n CVE-2022-1158 CVE-2022-1195 CVE-2022-1198 CVE-2022-1199\n CVE-2022-1204 CVE-2022-1205 CVE-2022-1353 CVE-2022-1516\n CVE-2022-26490 CVE-2022-27666 CVE-2022-28356 CVE-2022-28388\n CVE-2022-28389 CVE-2022-28390 CVE-2022-29582\n\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to a privilege escalation, denial of service or information\nleaks.\n\nCVE-2021-4197\n\n Eric Biederman reported that incorrect permission checks in the\n cgroup process migration implementation can allow a local attacker\n to escalate privileges.\n\nCVE-2022-0168\n\n A NULL pointer dereference flaw was found in the CIFS client\n implementation which can allow a local attacker with CAP_SYS_ADMIN\n privileges to crash the system. The security impact is negligible as\n CAP_SYS_ADMIN inherently gives the ability to deny service.\n\nCVE-2022-1016\n\n David Bouman discovered a flaw in the netfilter subsystem where the\n nft_do_chain function did not initialize register data that\n nf_tables expressions can read from and write to. A local attacker\n can take advantage of this to read sensitive information.\n\nCVE-2022-1048\n\n Hu Jiahui discovered a race condition in the sound subsystem that\n can result in a use-after-free. A local user permitted to access a\n PCM sound device can take advantage of this flaw to crash the\n system or potentially for privilege escalation.\n\nCVE-2022-1158\n\n Qiuhao Li, Gaoning Pan, and Yongkang Jia discovered a bug in the\n KVM implementation for x86 processors. A local user with access to\n /dev/kvm could cause the MMU emulator to update page table entry\n flags at the wrong address. They could exploit this to cause a\n denial of service (memory corruption or crash) or possibly for\n privilege escalation.\n\nCVE-2022-1195\n\n Lin Ma discovered race conditions in the 6pack and mkiss hamradio\n drivers, which could lead to a use-after-free. A local user could\n exploit these to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n\nCVE-2022-1198\n\n Duoming Zhou discovered a race condition in the 6pack hamradio\n driver, which could lead to a use-after-free. A local user could\n exploit this to cause a denial of service (memory corruption or\n crash) or possibly for privilege escalation.\n\nCVE-2022-1199, CVE-2022-1204, CVE-2022-1205\n\n Duoming Zhou discovered race conditions in the AX.25 hamradio\n protocol, which could lead to a use-after-free or null pointer\n dereference. A local user could exploit this to cause a denial of\n service (memory corruption or crash) or possibly for privilege\n escalation.\n\nCVE-2022-1353\n\n The TCS Robot tool found an information leak in the PF_KEY\n subsystem. A local user can receive a netlink message when an\n IPsec daemon reegisters with the kernel, and this could include\n sensitive information.\n\nCVE-2022-1516\n\n A NULL pointer dereference flaw in the implementation of the X.25\n set of standardized network protocols, which can result in denial\n of service.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-26490\n\n Buffer overflows in the STMicroelectronics ST21NFCA core driver can\n result in denial of service or privilege escalation.\n\n This driver is not enabled in Debian's official kernel\n configurations.\n\nCVE-2022-27666\n\n "valis" reported a possible buffer overflow in the IPsec ESP\n transformation code. A local user can take advantage of this flaw to\n cause a denial of service or for privilege escalation.\n\nCVE-2022-28356\n\n Beraphin discovered that the ANSI/IEEE 802.2 LLC type 2 driver did\n not properly perform reference counting on some error paths. A\n local attacker can take advantage of this flaw to cause a denial\n of service.\n\nCVE-2022-28388\n\n A double free vulnerability was discovered in the 8 devices USB2CAN\n interface driver.\n\nCVE-2022-28389\n\n A double free vulnerability was discovered in the Microchip CAN BUS\n Analyzer interface driver.\n\nCVE-2022-28390\n\n A double free vulnerability was discovered in the EMS CPC-USB/ARM7\n CAN/USB interface driver.\n\nCVE-2022-29582\n\n Jayden Rivers and David Bouman discovered a user-after-free\n vulnerability in the io_uring subystem due to a race condition in\n io_uring timeouts. A local unprivileged user can take advantage of\n this flaw for privilege escalation.\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 5.10.113-1.\n\nWe recommend that you upgrade your linux packages.\n\nFor the detailed security status of linux please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/linux\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-05-02T21:02:58", "type": "debian", "title": "[SECURITY] [DSA 5127-1] linux security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-4197", "CVE-2022-0168", "CVE-2022-1016", "CVE-2022-1048", "CVE-2022-1158", "CVE-2022-1195", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1204", "CVE-2022-1205", "CVE-2022-1353", "CVE-2022-1516", "CVE-2022-26490", "CVE-2022-27666", "CVE-2022-28356", "CVE-2022-28388", "CVE-2022-28389", "CVE-2022-28390", "CVE-2022-29582"], "modified": "2022-05-02T21:02:58", "id": "DEBIAN:DSA-5127-1:B6959", "href": "https://lists.debian.org/debian-security-announce/2022/msg00095.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "cve": [{"lastseen": "2023-02-09T14:10:06", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23037", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:31:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23037", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23037", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:10:02", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23039", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:33:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23039", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23039", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:10:03", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23036", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:30:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23036", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23036", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:10:05", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23041", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:26:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23041", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23041", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:10:05", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23042", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:30:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23042", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23042", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:10:03", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23040", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:36:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23040", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23040", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:10:03", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "cve", "title": "CVE-2022-23038", "cwe": ["CWE-362"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-11-29T02:32:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/o:xen:xen:-"], "id": "CVE-2022-23038", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-23038", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}], "redhatcve": [{"lastseen": "2022-05-21T01:03:14", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-05-20T23:40:38", "type": "redhatcve", "title": "CVE-2022-23036", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-05-20T23:40:38", "id": "RH:CVE-2022-23036", "href": "https://access.redhat.com/security/cve/cve-2022-23036", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-21T01:03:15", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-05-21T00:09:08", "type": "redhatcve", "title": "CVE-2022-23038", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-05-21T00:09:08", "id": "RH:CVE-2022-23038", "href": "https://access.redhat.com/security/cve/cve-2022-23038", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-21T01:03:15", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-05-20T23:02:28", "type": "redhatcve", "title": "CVE-2022-23040", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-05-20T23:02:28", "id": "RH:CVE-2022-23040", "href": "https://access.redhat.com/security/cve/cve-2022-23040", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-03-08T08:17:24", "description": "The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 (\"Double-Hash Port Selection Algorithm\") of RFC 6056.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.2}, "published": "2022-06-14T14:30:03", "type": "redhatcve", "title": "CVE-2022-32296", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1012", "CVE-2022-32296"], "modified": "2023-03-08T06:01:19", "id": "RH:CVE-2022-32296", "href": "https://access.redhat.com/security/cve/cve-2022-32296", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "ubuntucve": [{"lastseen": "2023-02-17T13:27:30", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23039", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23039", "href": "https://ubuntu.com/security/CVE-2022-23039", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-17T13:27:29", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23037", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23037", "href": "https://ubuntu.com/security/CVE-2022-23037", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-17T13:27:30", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23038", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23038", "href": "https://ubuntu.com/security/CVE-2022-23038", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-17T13:27:32", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23036", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23036", "href": "https://ubuntu.com/security/CVE-2022-23036", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-17T13:27:30", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23042", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23042", "href": "https://ubuntu.com/security/CVE-2022-23042", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-17T13:27:28", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23041", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23041", "href": "https://ubuntu.com/security/CVE-2022-23041", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-17T13:27:29", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA\ninformation record relates to multiple CVEs; the text explains which\naspects/vulnerabilities correspond to which CVE.] Several Linux PV device\nfrontends are using the grant table interfaces for removing access rights\nof the backends in ways being subject to race conditions, resulting in\npotential data leaks, data corruption by malicious backends, and denial of\nservice triggered by malicious backends: blkfront, netfront, scsifront and\nthe gntalloc driver are testing whether a grant reference is still in use.\nIf this is not the case, they assume that a following removal of the\ngranted access will always succeed, which is not true in case the backend\nhas mapped the granted page between those two operations. As a result the\nbackend can keep access to the memory page of the guest no matter how the\npage will be used after the frontend I/O has finished. The xenbus driver\nhas a similar problem, as it doesn't check the success of removing the\ngranted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront:\nCVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus:\nCVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,\nkbdfront, and pvcalls are using a functionality to delay freeing a grant\nreference until it is no longer in use, but the freeing of the related data\npage is not synchronized with dropping the granted access. As a result the\nbackend can keep access to the memory page even after it has been freed and\nthen re-used for a different purpose. CVE-2022-23041 netfront will fail a\nBUG_ON() assertion if it fails to revoke access in the rx path. This will\nresult in a Denial of Service (DoS) situation of the guest which can be\ntriggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T00:00:00", "type": "ubuntucve", "title": "CVE-2022-23040", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T00:00:00", "id": "UB:CVE-2022-23040", "href": "https://ubuntu.com/security/CVE-2022-23040", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-18T13:28:21", "description": "The Linux kernel before 5.17.9 allows TCP servers to identify clients by\nobserving what source ports are used. This occurs because of use of\nAlgorithm 4 (\"Double-Hash Port Selection Algorithm\") of RFC 6056.\n\n#### Bugs\n\n * <https://bugzilla.redhat.com/show_bug.cgi?id=2096901>\n * <https://bugzilla.redhat.com/show_bug.cgi?id=2064604>\n\n\n#### Notes\n\nAuthor| Note \n---|--- \n[sbeattie](<https://launchpad.net/~sbeattie>) | this is likely a duplicate of CVE-2022-1012\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "LOW", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 3.3, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2022-06-05T00:00:00", "type": "ubuntucve", "title": "CVE-2022-32296", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1012", "CVE-2022-32296"], "modified": "2022-06-05T00:00:00", "id": "UB:CVE-2022-32296", "href": "https://ubuntu.com/security/CVE-2022-32296", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "xen": [{"lastseen": "2022-03-17T20:43:25", "description": "#### ISSUE DESCRIPTION\nSeveral Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends:\nblkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040\nblkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041\n netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042\n#### IMPACT\nDue to race conditions and missing tests of return codes in the Linux PV device frontend drivers a malicious backend could gain access (read and write) to memory pages it shouldn't have, or it could directly trigger Denial of Service (DoS) in the guest.\n#### VULNERABLE SYSTEMS\nAll Linux guests using PV devices are vulnerable in case potentially malicious PV device backends are being used.\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T10:54:00", "type": "xen", "title": "Linux PV device frontends vulnerable to attacks by backends", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T10:54:00", "id": "XSA-396", "href": "http://xenbits.xen.org/xsa/advisory-396.html", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-06-25T00:00:08", "description": "#### ISSUE DESCRIPTION\nThis issue is related to the SRBDS, TAA and MDS vulnerabilities. Please see:\n <a href=\"https://xenbits.xen.org/xsa/advisory-320.html\">https://xenbits.xen.org/xsa/advisory-320.html</a> (SRBDS) <a href=\"https://xenbits.xen.org/xsa/advisory-305.html\">https://xenbits.xen.org/xsa/advisory-305.html</a> (TAA) <a href=\"https://xenbits.xen.org/xsa/advisory-297.html\">https://xenbits.xen.org/xsa/advisory-297.html</a> (MDS)\nPlease see Intel's whitepaper:\n <a href=\"https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html\">https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html</a>\n#### IMPACT\nAn attacker might be able to directly read or infer data from other security contexts in the system. This can include data belonging to other VMs, or to Xen itself. The degree to which an attacker can obtain data depends on the CPU, and the system configuration.\n#### VULNERABLE SYSTEMS\nSystems running all versions of Xen are affected.\nOnly x86 processors are vulnerable. Processors from other manufacturers (e.g. ARM) are not believed to be vulnerable.\nOnly Intel based processors are affected. Processors from other x86 manufacturers (e.g. AMD) are not believed to be vulnerable.\nPlease consult the Intel Security Advisory for details on the affected processors and configurations.\nPer Xen's support statement, PCI passthrough should be to trusted domains because the overall system security depends on factors outside of Xen's control.\nAs such, Xen, in a supported configuration, is not vulnerable to DRPW/SBDR.\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-06-14T18:21:00", "type": "xen", "title": "x86: MMIO Stale Data vulnerabilities", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166"], "modified": "2022-06-16T16:09:00", "id": "XSA-404", "href": "http://xenbits.xen.org/xsa/advisory-404.html", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}], "debiancve": [{"lastseen": "2023-03-30T16:44:49", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "debiancve", "title": "CVE-2022-23037", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T20:15:00", "id": "DEBIANCVE:CVE-2022-23037", "href": "https://security-tracker.debian.org/tracker/CVE-2022-23037", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-03-30T16:44:49", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "debiancve", "title": "CVE-2022-23038", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T20:15:00", "id": "DEBIANCVE:CVE-2022-23038", "href": "https://security-tracker.debian.org/tracker/CVE-2022-23038", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-03-30T16:44:49", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "debiancve", "title": "CVE-2022-23039", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T20:15:00", "id": "DEBIANCVE:CVE-2022-23039", "href": "https://security-tracker.debian.org/tracker/CVE-2022-23039", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-03-30T16:44:49", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "debiancve", "title": "CVE-2022-23040", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T20:15:00", "id": "DEBIANCVE:CVE-2022-23040", "href": "https://security-tracker.debian.org/tracker/CVE-2022-23040", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-03-30T16:44:49", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.0, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-03-10T20:15:00", "type": "debiancve", "title": "CVE-2022-23042", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042"], "modified": "2022-03-10T20:15:00", "id": "DEBIANCVE:CVE-2022-23042", "href": "https://security-tracker.debian.org/tracker/CVE-2022-23042", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-03-30T16:44:49", "description": "Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. 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This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494)\n\n - A memory leak flaw was found in the Linux kernel's DMA subsystem, in the way a user calls DMA_FROM_DEVICE.\n This flaw allows a local user to read random memory from the kernel space. (CVE-2022-0854)\n\n - A use-after-free vulnerability was found in drm_lease_held in drivers/gpu/drm/drm_lease.c in the Linux kernel due to a race problem. This flaw allows a local user privilege attacker to cause a denial of service (DoS) or a kernel information leak. (CVE-2022-1280)\n\n - A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information. (CVE-2022-1353)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished.\n The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042 (CVE-2022-23037)\n\n - usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double free. (CVE-2022-28388)\n\n - ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double free.\n (CVE-2022-28390)\n\n - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions. (CVE-2022-29581)\n\n - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.2}, "published": "2022-07-08T00:00:00", "type": "nessus", "title": "EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1999)", "bulletinFamily": "scanner", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0494", "CVE-2022-0854", "CVE-2022-1012", "CVE-2022-1280", "CVE-2022-1353", "CVE-2022-1729", "CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042", "CVE-2022-28388", "CVE-2022-28390", "CVE-2022-29581", "CVE-2022-30594"], "modified": "2023-01-06T00:00:00", "cpe": ["p-cpe:/a:huawei:euleros:kernel", "p-cpe:/a:huawei:euleros:kernel-tools", "p-cpe:/a:huawei:euleros:kernel-tools-libs", "p-cpe:/a:huawei:euleros:python3-perf", "cpe:/o:huawei:euleros:2.0"], "id": "EULEROS_SA-2022-1999.NASL", "href": "https://www.tenable.com/plugins/nessus/162908", "sourceData": "##\n# (C) Tenable, Inc.\n##\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(162908);\n script_version(\"1.6\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2023/01/06\");\n\n script_cve_id(\n \"CVE-2022-0494\",\n \"CVE-2022-0854\",\n \"CVE-2022-1012\",\n \"CVE-2022-1280\",\n \"CVE-2022-1353\",\n \"CVE-2022-1729\",\n \"CVE-2022-23037\",\n \"CVE-2022-28388\",\n \"CVE-2022-28390\",\n \"CVE-2022-29581\",\n \"CVE-2022-30594\"\n );\n\n script_name(english:\"EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1999)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote EulerOS host is missing multiple security updates.\");\n script_set_attribute(attribute:\"description\", value:\n\"According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by\nthe following vulnerabilities :\n\n - A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in\n the Linux kernel. 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{'reference':'kernel-default-man-4.12.14-150100.197.111.1', 'sp':'1', 'cpu':'s390x', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.1']},\n {'reference':'kernel-obs-build-4.12.14-150100.197.111.1', 'sp':'1', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.1']},\n {'reference':'kernel-syms-4.12.14-150100.197.111.1', 'sp':'1', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.1']},\n {'reference':'reiserfs-kmp-default-4.12.14-150100.197.111.1', 'sp':'1', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.1']}\n];\n\nvar ltss_caveat_required = FALSE;\nvar flag = 0;\nforeach var package_array ( pkgs ) {\n var reference = NULL;\n var _release = NULL;\n var sp = NULL;\n var _cpu = NULL;\n var exists_check = NULL;\n var rpm_spec_vers_cmp = NULL;\n if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];\n if 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that apply to\\n' +\n 'packages only available in SUSE Enterprise Linux Server LTSS\\n' +\n 'repositories. Access to these package security updates require\\n' +\n 'a paid SUSE LTSS subscription.\\n';\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get() + ltss_plugin_caveat\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc');\n}\n", "cvss": {"score": 6.9, "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-03-23T23:04:21", "description": "The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5467-1 advisory.\n\n - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)\n\n - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2021-4197)\n\n - A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers write().\n This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. (CVE-2022-1011)\n\n - A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information. (CVE-2022-1353)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's X.25 set of standardized network protocols functionality in the way a user terminates their session using a simulated Ethernet card and continued usage of this connection. This flaw allows a local user to crash the system. (CVE-2022-1516)\n\n - A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue. (CVE-2022-1966)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished.\n The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042 (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23041, CVE-2022-23042)\n\n - drivers/usb/gadget/legacy/inode.c in the Linux kernel through 5.16.8 mishandles dev->buf release.\n (CVE-2022-24958)\n\n - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)\n\n - In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356)\n\n - mcba_usb_start_xmit in drivers/net/can/usb/mcba_usb.c in the Linux kernel through 5.17.1 has a double free. (CVE-2022-28389)\n\n - ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double free.\n (CVE-2022-28390)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-06-08T00:00:00", "type": "nessus", "title": "Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5467-1)", "bulletinFamily": "scanner", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-3772", "CVE-2021-4197", "CVE-2022-1011", "CVE-2022-1158", "CVE-2022-1198", "CVE-2022-1353", "CVE-2022-1516", "CVE-2022-1966", "CVE-2022-21499", "CVE-2022-23036", "CVE-2022-23037", "CVE-2022-23038", "CVE-2022-23039", "CVE-2022-23040", "CVE-2022-23041", "CVE-2022-23042", "CVE-2022-24958", "CVE-2022-26966", "CVE-2022-28356", "CVE-2022-28389", "CVE-2022-28390"], "modified": "2023-01-17T00:00:00", "cpe": ["cpe:/o:canonical:ubuntu_linux:18.04:-:lts", "cpe:/o:canonical:ubuntu_linux:20.04:-:lts", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1026-ibm", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1046-gkeop", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1065-raspi", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1068-kvm", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1074-gke", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1076-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1078-aws", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1078-gcp", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1083-azurefde", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-117-generic", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-117-generic-lpae", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-117-lowlatency", "p-cpe:/a:canonical:ubuntu_linux:linux-image-aws", "p-cpe:/a:canonical:ubuntu_linux:linux-image-azurefde", "p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp", "p-cpe:/a:canonical:ubuntu_linux:linux-image-generic", "p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae", "p-cpe:/a:canonical:ubuntu_linux:linux-image-gke", "p-cpe:/a:canonical:ubuntu_linux:linux-image-gkeop", "p-cpe:/a:canonical:ubuntu_linux:linux-image-ibm", "p-cpe:/a:canonical:ubuntu_linux:linux-image-kvm", "p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency", "p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle", "p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi"], "id": "UBUNTU_USN-5467-1.NASL", "href": "https://www.tenable.com/plugins/nessus/161950", "sourceData": "##\n# (C) Tenable, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from Ubuntu Security Notice USN-5467-1. The text\n# itself is copyright (C) Canonical, Inc. See\n# <https://ubuntu.com/security/notices>. 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(CVE-2022-1966)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to\n multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV\n device frontends are using the grant table interfaces for removing access rights of the backends in ways\n being subject to race conditions, resulting in potential data leaks, data corruption by malicious\n backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the\n gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they\n assume that a following removal of the granted access will always succeed, which is not true in case the\n backend has mapped the granted page between those two operations. 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If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished.\n The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042 (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23042)\n\n - drivers/usb/gadget/legacy/inode.c in the Linux kernel through 5.16.8 mishandles dev->buf release.\n (CVE-2022-24958)\n\n - An issue was discovered in drivers/usb/gadget/composite.c in the Linux kernel before 5.16.10. The USB Gadget subsystem lacks certain validation of interface OS descriptor requests (ones with a large array index and ones associated with NULL function pointer retrieval). Memory corruption might occur.\n (CVE-2022-25258)\n\n - An issue was discovered in drivers/usb/gadget/function/rndis.c in the Linux kernel before 5.16.10. The RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. Attackers can obtain sensitive information from kernel memory. (CVE-2022-25375)\n\n - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)\n\n - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)\n\n - In drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel before 5.16.12, the endpoint index is not validated and might be manipulated by the host for out-of-array access. (CVE-2022-27223)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-05-12T00:00:00", "type": "nessus", "title": "Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-5418-1)", "bulletinFamily": "scanner", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": 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'pkgname': 'linux-modules-4.15.0-177-generic', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-modules-4.15.0-177-generic-lpae', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-modules-4.15.0-177-lowlatency', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-4.15.0-1093-oracle', 'pkgver': '4.15.0-1093.102'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-4.15.0-1122-gcp', 'pkgver': '4.15.0-1122.136'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-4.15.0-1128-aws', 'pkgver': '4.15.0-1128.137'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-4.15.0-1138-azure', 'pkgver': '4.15.0-1138.151'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-4.15.0-177-generic', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-aws-lts-18.04', 'pkgver': '4.15.0.1128.131'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-azure-lts-18.04', 'pkgver': '4.15.0.1138.111'},\n {'osver': '18.04', 'pkgname': 'linux-modules-extra-gcp-lts-18.04', 'pkgver': '4.15.0.1122.141'},\n {'osver': '18.04', 'pkgname': 'linux-oracle-headers-4.15.0-1093', 'pkgver': '4.15.0-1093.102'},\n {'osver': '18.04', 'pkgname': 'linux-oracle-lts-18.04', 'pkgver': '4.15.0.1093.103'},\n {'osver': '18.04', 'pkgname': 'linux-oracle-tools-4.15.0-1093', 'pkgver': '4.15.0-1093.102'},\n {'osver': '18.04', 'pkgname': 'linux-signed-azure-lts-18.04', 'pkgver': '4.15.0.1138.111'},\n {'osver': '18.04', 'pkgname': 'linux-signed-generic', 'pkgver': '4.15.0.177.166'},\n {'osver': '18.04', 'pkgname': 'linux-signed-generic-hwe-16.04', 'pkgver': '4.15.0.177.166'},\n {'osver': '18.04', 'pkgname': 'linux-signed-generic-hwe-16.04-edge', 'pkgver': '4.15.0.177.166'},\n {'osver': '18.04', 'pkgname': 'linux-signed-image-azure-lts-18.04', 'pkgver': '4.15.0.1138.111'},\n {'osver': '18.04', 'pkgname': 'linux-signed-image-generic', 'pkgver': '4.15.0.177.166'},\n {'osver': '18.04', 'pkgname': 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'18.04', 'pkgname': 'linux-tools-4.15.0-1138-azure', 'pkgver': '4.15.0-1138.151'},\n {'osver': '18.04', 'pkgname': 'linux-tools-4.15.0-177', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-tools-4.15.0-177-generic', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-tools-4.15.0-177-generic-lpae', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-tools-4.15.0-177-lowlatency', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-tools-aws-lts-18.04', 'pkgver': '4.15.0.1128.131'},\n {'osver': '18.04', 'pkgname': 'linux-tools-azure-lts-18.04', 'pkgver': '4.15.0.1138.111'},\n {'osver': '18.04', 'pkgname': 'linux-tools-common', 'pkgver': '4.15.0-177.186'},\n {'osver': '18.04', 'pkgname': 'linux-tools-dell300x', 'pkgver': '4.15.0.1042.44'},\n {'osver': '18.04', 'pkgname': 'linux-tools-gcp-lts-18.04', 'pkgver': '4.15.0.1122.141'},\n {'osver': '18.04', 'pkgname': 'linux-tools-generic', 'pkgver': '4.15.0.177.166'},\n 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Access to these package security updates require\\n' +\n 'a paid SUSE LTSS subscription.\\n';\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get() + ltss_plugin_caveat\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc');\n}\n", "cvss": {"score": 6.9, "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-03-29T03:00:40", "description": "The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1255-1 advisory.\n\n - Product: AndroidVersions: Android kernelAndroid ID: A-173788806References: Upstream kernel (CVE-2021-39713)\n\n - In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). 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The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1048)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. 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This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042 (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23041, CVE-2022-23042)\n\n - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)\n\n - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)\n\n - In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356)\n\n - usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double free. 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The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1048)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. 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The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1048)\n\n - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. 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preg(pattern:\"^(7|8)([^0-9]|$)\", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 7 / 8', 'Oracle Linux ' + os_ver);\n\nif (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);\n\nvar cpu = get_kb_item('Host/cpu');\nif (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);\nif ('x86_64' >!< cpu && cpu !~ \"^i[3-6]86$\" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);\nif ('x86_64' >!< cpu) audit(AUDIT_ARCH_NOT, 'x86_64', cpu);\n\nvar machine_uptrack_level = get_one_kb_item('Host/uptrack-uname-r');\nif (machine_uptrack_level)\n{\n var trimmed_uptrack_level = ereg_replace(string:machine_uptrack_level, pattern:\"\\.(x86_64|i[3-6]86|aarch64)$\", replace:'');\n var fixed_uptrack_levels = ['5.4.17-2136.308.7.el7', '5.4.17-2136.308.7.el8'];\n foreach var fixed_uptrack_level ( fixed_uptrack_levels ) {\n if (rpm_spec_vers_cmp(a:trimmed_uptrack_level, b:fixed_uptrack_level) >= 0)\n {\n audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for ELSA-2022-9480');\n }\n }\n __rpm_report = 'Running KSplice level of ' + trimmed_uptrack_level + ' does not meet the minimum fixed level of ' + join(fixed_uptrack_levels, sep:' / ') + ' for this advisory.\\n\\n';\n}\n\nvar kernel_major_minor = get_kb_item('Host/uname/major_minor');\nif (empty_or_null(kernel_major_minor)) exit(1, 'Unable to determine kernel major-minor level.');\nvar expected_kernel_major_minor = '5.4';\nif (kernel_major_minor != expected_kernel_major_minor)\n audit(AUDIT_OS_NOT, 'running kernel level ' + expected_kernel_major_minor + ', it is running kernel level ' + kernel_major_minor);\n\nvar pkgs = [\n {'reference':'kernel-uek-container-5.4.17-2136.308.7.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-container-5.4.17'},\n {'reference':'kernel-uek-container-debug-5.4.17-2136.308.7.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-container-debug-5.4.17'},\n {'reference':'kernel-uek-container-5.4.17-2136.308.7.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-container-5.4.17'},\n {'reference':'kernel-uek-container-debug-5.4.17-2136.308.7.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-container-debug-5.4.17'}\n];\n\nvar flag = 0;\nforeach var package_array ( pkgs ) {\n var reference = NULL;\n var release = NULL;\n var sp = NULL;\n var cpu = NULL;\n var el_string = NULL;\n var rpm_spec_vers_cmp = NULL;\n var epoch = NULL;\n var allowmaj = NULL;\n var exists_check = NULL;\n if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];\n if (!empty_or_null(package_array['release'])) release = 'EL' + package_array['release'];\n if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];\n if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];\n if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];\n if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];\n if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];\n if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];\n if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];\n if (reference && release) {\n if (exists_check) {\n if (rpm_exists(release:release, rpm:exists_check) && rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n } else {\n if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n }\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel-uek-container / kernel-uek-container-debug');\n}\n", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-03-26T17:27:59", "description": "The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5173 advisory.\n\n - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free. (CVE-2022-32250)\n\n - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2021-4197)\n\n - A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494)\n\n - An information leak flaw was found in NFS over RDMA in the net/sunrpc/xprtrdma/rpc_rdma.c in the Linux Kernel. This flaw allows an attacker with normal user privileges to leak kernel information.\n (CVE-2022-0812)\n\n - A memory leak flaw was found in the Linux kernel's DMA subsystem, in the way a user calls DMA_FROM_DEVICE.\n This flaw allows a local user to read random memory from the kernel space. (CVE-2022-0854)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.2}, "published": "2022-07-04T00:00:00", "type": "nessus", "title": "Debian DSA-5173-1 : linux - security update", "bulletinFamily": "scanner", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-4197", "CVE-2022-0494", "CVE-2022-0812", "CVE-2022-0854", "CVE-2022-1011", "CVE-2022-1012", "CVE-2022-1016", "CVE-2022-1048", "CVE-2022-1184", "CVE-2022-1195", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1204", "CVE-2022-1205", "CVE-2022-1353", "CVE-2022-1419", "CVE-2022-1516", "CVE-2022-1652", "CVE-2022-1729", "CVE-2022-1734", "CVE-2022-1974", "CVE-2022-1975", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-2153", "CVE-2022-23960", "CVE-2022-26490", "CVE-2022-27666", "CVE-2022-28356", "CVE-2022-28388", "CVE-2022-28389", "CVE-2022-28390", "CVE-2022-29581", "CVE-2022-30594", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-33981"], "modified": "2023-03-21T00:00:00", "cpe": ["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", 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Debian DLA-3065-1 : linux - LTS security update

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