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{"id": "UBUNTU_USN-5468-1.NASL", "vendorId": null, "type": "nessus", "bulletinFamily": "scanner", "title": "Ubuntu 20.04 LTS / 21.10 : Linux kernel vulnerabilities (USN-5468-1)", "description": "The remote Ubuntu 20.04 LTS / 21.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5468-1 advisory.\n\n - A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition. (CVE-2022-1158)\n\n - KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown.\n An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. (CVE-2022-21499)\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 - 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.", "published": "2022-06-08T00:00:00", "modified": "2023-03-21T00:00:00", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 4.6}, "severity": "MEDIUM", "exploitabilityScore": 3.9, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}, "href": "https://www.tenable.com/plugins/nessus/161956", "reporter": "Ubuntu Security Notice (C) 2022-2023 Canonical, Inc. / NASL script (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.", "references": ["https://ubuntu.com/security/notices/USN-5468-1", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1972", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1966", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24958", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1158", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28390", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21499"], "cvelist": ["CVE-2022-1158", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499", "CVE-2022-24958", "CVE-2022-28390"], "immutableFields": [], "lastseen": "2023-03-25T17:21:30", "viewCount": 30, "enchantments": {"score": {"value": -0.4, "vector": "NONE"}, "dependencies": {"references": [{"type": "almalinux", "idList": ["ALSA-2022:7683"]}, {"type": "altlinux", "idList": ["69D1753D74C2782AF5C4B3E24536D125"]}, {"type": "amazon", "idList": ["ALAS-2022-1591", "ALAS-2022-1604", "ALAS2-2022-1793", "ALAS2-2022-1813"]}, {"type": "centos", "idList": ["CESA-2022:5232"]}, {"type": "cloudlinux", "idList": ["CLSA-2022:1650377026", "CLSA-2022:1650377052"]}, {"type": "cve", "idList": ["CVE-2022-1158", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499", "CVE-2022-24958", "CVE-2022-28390"]}, {"type": "debian", "idList": ["DEBIAN:DLA-3065-1:C1710", "DEBIAN:DSA-5127-1:B6959", "DEBIAN:DSA-5161-1:2800F", "DEBIAN:DSA-5173-1:5A28E"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2022-1158", "DEBIANCVE:CVE-2022-1966", "DEBIANCVE:CVE-2022-1972", "DEBIANCVE:CVE-2022-21499", "DEBIANCVE:CVE-2022-24958", "DEBIANCVE:CVE-2022-28390"]}, {"type": "fedora", "idList": ["FEDORA:11BA63093F7B", "FEDORA:23A0030AD936", "FEDORA:5D5BA3025879", "FEDORA:8904F30B95E5", "FEDORA:BE42330AF3B5", "FEDORA:CFF3C30B73E9", "FEDORA:D741830B132E"]}, {"type": "githubexploit", "idList": ["78CB0CDA-F946-55E6-A153-20EC40D632CE"]}, {"type": "ibm", "idList": ["7A31AC3AD76478BCDFF5EAFDE198D822A87AF40F80D6BE332BB307F284077425", "80CD718D1D142D3B40DCBA71626D910648A9F36D3E9F858F36123167200B31E5"]}, {"type": "ics", "idList": ["ICSA-23-075-01"]}, {"type": "mageia", "idList": ["MGASA-2022-0154", "MGASA-2022-0155", "MGASA-2022-0212", "MGASA-2022-0213", "MGASA-2022-0229", "MGASA-2022-0230"]}, {"type": "nessus", "idList": ["AL2022_ALAS2022-2022-042.NASL", "AL2022_ALAS2022-2022-083.NASL", 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The text\n# itself is copyright (C) Canonical, Inc. See\n# <https://ubuntu.com/security/notices>. 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{"ubuntu": [{"lastseen": "2023-01-26T15:12:06", "description": "## Releases\n\n * Ubuntu 21.10 \n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-aws-5.13 \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-azure \\- Linux kernel for Microsoft Azure Cloud systems\n * linux-azure-5.13 \\- Linux kernel for Microsoft Azure cloud systems\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gcp-5.13 \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-hwe-5.13 \\- Linux hardware enablement (HWE) kernel\n * linux-intel-5.13 \\- Linux kernel for Intel IOTG\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-oracle \\- Linux kernel for Oracle Cloud systems\n * linux-oracle-5.13 \\- Linux kernel for Oracle Cloud systems\n * linux-raspi \\- Linux kernel for Raspberry Pi systems\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nQiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM \nimplementation in the Linux kernel did not properly perform guest page \ntable updates in some situations. An attacker in a guest vm could possibly \nuse this to crash the host OS. (CVE-2022-1158)\n\nZiming Zhang discovered that the netfilter subsystem in the Linux kernel \ndid not properly validate sets with multiple ranged fields. A local \nattacker could use this to cause a denial of service or execute arbitrary \ncode. (CVE-2022-1972)\n\nIt was discovered that the USB Gadget file system interface in the Linux \nkernel contained a use-after-free vulnerability. A local attacker could use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2022-24958)\n\nIt was discovered that the EMS CAN/USB interface implementation in the \nLinux kernel contained a double-free vulnerability when handling certain \nerror conditions. A local attacker could use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-28390)\n", "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": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1158", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499", "CVE-2022-24958", "CVE-2022-28390"], "modified": "2022-06-08T00:00:00", "id": "USN-5468-1", "href": "https://ubuntu.com/security/notices/USN-5468-1", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-01-26T15:12:03", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-oem-5.14 \\- Linux kernel for OEM systems\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nMinh Yuan discovered that the floppy driver in the Linux kernel contained a \nrace condition in some situations, leading to a use-after-free \nvulnerability. A local attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2022-1836)\n\nZiming Zhang discovered that the netfilter subsystem in the Linux kernel \ndid not properly validate sets with multiple ranged fields. A local \nattacker could use this to cause a denial of service or execute arbitrary \ncode. (CVE-2022-1972)\n", "cvss3": {"exploitabilityScore": 0.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "baseScore": 6.7, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/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": "ubuntu", "title": "Linux kernel (OEM) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1836", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499"], "modified": "2022-06-08T00:00:00", "id": "USN-5470-1", "href": "https://ubuntu.com/security/notices/USN-5470-1", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-06-21T15:46:50", "description": "Aaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code.(CVE-2022-1966)\n\nZiming Zhang discovered that the netfilter subsystem in the Linux kernel \ndid not properly validate sets with multiple ranged fields. A local \nattacker could use this to cause a denial of service or execute arbitrary \ncode.(CVE-2022-1972)\n", "cvss3": {}, "published": "2022-06-16T00:00:00", "type": "ubuntu", "title": "Kernel Live Patch Security Notice", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2022-1966", "CVE-2022-1972"], "modified": "2022-06-16T00:00:00", "id": "LSN-0087-1", "href": "https://ubuntu.com/security/notices/LSN-0087-1", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-01-26T15:12:11", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-lts-xenial \\- Linux hardware enablement kernel from Xenial for Trusty\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nJann Horn discovered that the Linux kernel did not properly enforce seccomp \nrestrictions in some situations. A local attacker could use this to bypass \nintended seccomp sandbox restrictions. (CVE-2022-30594)\n", "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": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1966", "CVE-2022-21499", "CVE-2022-30594"], "modified": "2022-06-08T00:00:00", "id": "USN-5465-1", "href": "https://ubuntu.com/security/notices/USN-5465-1", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-02-02T04:28:38", "description": "## Releases\n\n * Ubuntu 18.04 LTS\n * Ubuntu 16.04 ESM\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-aws-hwe \\- Linux kernel for Amazon Web Services (AWS-HWE) systems\n * linux-azure \\- Linux kernel for Microsoft Azure Cloud systems\n * linux-azure-4.15 \\- Linux kernel for Microsoft Azure Cloud systems\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gcp-4.15 \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-hwe \\- Linux hardware enablement (HWE) kernel\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-oracle \\- Linux kernel for Oracle Cloud systems\n * linux-raspi2 \\- Linux kernel for Raspberry Pi systems\n * linux-snapdragon \\- Linux kernel for Qualcomm Snapdragon processors\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nIt was discovered that the SCTP protocol implementation in the Linux kernel \ndid not properly verify VTAGs in some situations. A remote attacker could \npossibly use this to cause a denial of service (connection disassociation). \n(CVE-2021-3772)\n\nIt was discovered that the btrfs file system implementation in the Linux \nkernel did not properly handle locking in certain error conditions. A local \nattacker could use this to cause a denial of service (kernel deadlock). \n(CVE-2021-4149)\n\nDavid Bouman discovered that the netfilter subsystem in the Linux kernel \ndid not initialize memory in some situations. A local attacker could use \nthis to expose sensitive information (kernel memory). (CVE-2022-1016)\n\nIt was discovered that the virtual graphics memory manager implementation \nin the Linux kernel was subject to a race condition, potentially leading to \nan information leak. (CVE-2022-1419)\n\n\u8d75\u5b50\u8f69 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not \nproperly perform reference counting in some error conditions. A local \nattacker could use this to cause a denial of service. (CVE-2022-28356)\n\nIt was discovered that the EMS CAN/USB interface implementation in the \nLinux kernel contained a double-free vulnerability when handling certain \nerror conditions. A local attacker could use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-28390)\n", "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": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 5.8, "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-3772", "CVE-2021-4149", "CVE-2022-1016", "CVE-2022-1419", "CVE-2022-1966", "CVE-2022-21499", "CVE-2022-28356", "CVE-2022-28390"], "modified": "2022-06-08T00:00:00", "id": "USN-5466-1", "href": "https://ubuntu.com/security/notices/USN-5466-1", "cvss": {"score": 5.8, "vector": "AV:N/AC:M/Au:N/C:N/I:P/A:P"}}, {"lastseen": "2023-01-26T15:12:04", "description": "## Releases\n\n * Ubuntu 22.04 LTS\n\n## Packages\n\n * linux-oem-5.17 \\- Linux kernel for OEM systems\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nMoshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation \nin the Linux kernel did not provide sufficient randomization when \ncalculating port offsets. An attacker could possibly use this to expose \nsensitive information. (CVE-2022-1012)\n\nDuoming Zhou discovered race conditions in the AX.25 amateur radio protocol \nimplementation in the Linux kernel, leading to use-after-free \nvulnerabilities. A local attacker could possibly use this to cause a denial \nof service (system crash). (CVE-2022-1205)\n\nIt was discovered that the Marvell NFC device driver implementation in the \nLinux kernel did not properly perform memory cleanup operations in some \nsituations, leading to a use-after-free vulnerability. A local attacker \ncould possibly use this to cause a denial of service (system crash) or \nexecute arbitrary code. (CVE-2022-1734)\n\nMinh Yuan discovered that the floppy driver in the Linux kernel contained a \nrace condition in some situations, leading to a use-after-free \nvulnerability. A local attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2022-1836)\n\nZiming Zhang discovered that the netfilter subsystem in the Linux kernel \ndid not properly validate sets with multiple ranged fields. A local \nattacker could use this to cause a denial of service or execute arbitrary \ncode. (CVE-2022-1972)\n\nJoseph Ravichandran and Michael Wang discovered that the io_uring subsystem \nin the Linux kernel did not properly initialize data in some situations. A \nlocal attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-29968)\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": "2022-06-08T00:00:00", "type": "ubuntu", "title": "Linux kernel (OEM) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1012", "CVE-2022-1205", "CVE-2022-1734", "CVE-2022-1836", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499", "CVE-2022-29968"], "modified": "2022-06-08T00:00:00", "id": "USN-5471-1", "href": "https://ubuntu.com/security/notices/USN-5471-1", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-09-07T02:12:15", "description": "Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1966)\n\nZiming Zhang discovered that the netfilter subsystem in the Linux kernel \ndid not properly validate sets with multiple ranged fields. A local \nattacker could use this to cause a denial of service or execute arbitrary \ncode.(CVE-2022-1972)\n\nIt was discovered that the implementation of POSIX timers in the Linux \nkernel did not properly clean up timers in some situations. A local \nattacker could use this to cause a denial of service (system crash) or \nexecute arbitrary code.(CVE-2022-2585)\n\nIt was discovered that the netfilter subsystem of the Linux kernel did not \nprevent one nft object from referencing an nft set in another nft table, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code.(CVE-2022-2586)\n\nZhenpeng Lin discovered that the network packet scheduler implementation in \nthe Linux kernel did not properly remove all references to a route filter \nbefore freeing it in some situations. A local attacker could use this to \ncause a denial of service (system crash) or execute arbitrary code.(CVE-2022-2588)\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions.(CVE-2022-21499)\n\nKyle Zeng discovered that the Network Queuing and Scheduling subsystem of \nthe Linux kernel did not properly perform reference counting in some \nsituations, leading to a use-after-free vulnerability. A local attacker \ncould use this to cause a denial of service (system crash) or execute \narbitrary code.(CVE-2022-29581)\n\nArthur Mongodin discovered that the netfilter subsystem in the Linux kernel \ndid not properly perform data validation. A local attacker could use this \nto escalate privileges in certain situations.(CVE-2022-34918)\n", "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": "2022-08-24T00:00:00", "type": "ubuntu", "title": "Kernel Live Patch Security Notice", "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-2022-1966", "CVE-2022-1972", "CVE-2022-21499", "CVE-2022-2585", "CVE-2022-2586", "CVE-2022-2588", "CVE-2022-29581", "CVE-2022-34918"], "modified": "2022-08-24T00:00:00", "id": "LSN-0089-1", "href": "https://ubuntu.com/security/notices/LSN-0089-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-01-26T15:13:19", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-oem-5.14 \\- Linux kernel for OEM systems\n\nQiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM \nimplementation in the Linux kernel did not properly perform guest page \ntable updates in some situations. An attacker in a guest vm could possibly \nuse this to crash the host OS. (CVE-2022-1158)\n\nIt was discovered that the implementation of X.25 network protocols in the \nLinux kernel did not terminate link layer sessions properly. A local \nattacker could possibly use this to cause a denial of service (system \ncrash). (CVE-2022-1516)\n\nIt was discovered that the 8 Devices USB2CAN interface implementation in \nthe Linux kernel did not properly handle certain error conditions, leading \nto a double-free. A local attacker could possibly use this to cause a \ndenial of service (system crash). (CVE-2022-28388)\n\nIt was discovered that the Microchip CAN BUS Analyzer interface \nimplementation in the Linux kernel did not properly handle certain error \nconditions, leading to a double-free. A local attacker could possibly use \nthis to cause a denial of service (system crash). (CVE-2022-28389)\n\nIt was discovered that the EMS CAN/USB interface implementation in the \nLinux kernel contained a double-free vulnerability when handling certain \nerror conditions. A local attacker could use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-28390)\n", "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": "2022-05-12T00:00:00", "type": "ubuntu", "title": "Linux kernel (OEM) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 4.9, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1158", "CVE-2022-1516", "CVE-2022-28388", "CVE-2022-28389", "CVE-2022-28390"], "modified": "2022-05-12T00:00:00", "id": "USN-5416-1", "href": "https://ubuntu.com/security/notices/USN-5416-1", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-02-09T08:27:02", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n * Ubuntu 18.04 LTS\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-aws-5.4 \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-azure \\- Linux kernel for Microsoft Azure Cloud systems\n * linux-azure-5.4 \\- Linux kernel for Microsoft Azure cloud systems\n * linux-azure-fde \\- Linux kernel for Microsoft Azure cloud systems\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gcp-5.4 \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gke \\- Linux kernel for Google Container Engine (GKE) systems\n * linux-gke-5.4 \\- Linux kernel for Google Container Engine (GKE) systems\n * linux-gkeop \\- Linux kernel for Google Container Engine (GKE) systems\n * linux-gkeop-5.4 \\- Linux kernel for Google Container Engine (GKE) systems\n * linux-hwe-5.4 \\- Linux hardware enablement (HWE) kernel\n * linux-ibm \\- Linux kernel for IBM cloud systems\n * linux-ibm-5.4 \\- Linux kernel for IBM cloud systems\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-oracle \\- Linux kernel for Oracle Cloud systems\n * linux-oracle-5.4 \\- Linux kernel for Oracle Cloud systems\n * linux-raspi \\- Linux kernel for Raspberry Pi systems\n * linux-raspi-5.4 \\- Linux kernel for Raspberry Pi systems\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nIt was discovered that the SCTP protocol implementation in the Linux kernel \ndid not properly verify VTAGs in some situations. A remote attacker could \npossibly use this to cause a denial of service (connection disassociation). \n(CVE-2021-3772)\n\nEric Biederman discovered that the cgroup process migration implementation \nin the Linux kernel did not perform permission checks correctly in some \nsituations. A local attacker could possibly use this to gain administrative \nprivileges. (CVE-2021-4197)\n\nJann Horn discovered that the FUSE file system in the Linux kernel \ncontained a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or possibly execute arbitrary \ncode. (CVE-2022-1011)\n\nQiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM \nimplementation in the Linux kernel did not properly perform guest page \ntable updates in some situations. An attacker in a guest vm could possibly \nuse this to crash the host OS. (CVE-2022-1158)\n\nDuoming Zhou discovered that the 6pack protocol implementation in the Linux \nkernel did not handle detach events properly in some situations, leading to \na use-after-free vulnerability. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-1198)\n\nIt was discovered that the PF_KEYv2 implementation in the Linux kernel did \nnot properly initialize kernel memory in some situations. A local attacker \ncould use this to expose sensitive information (kernel memory). \n(CVE-2022-1353)\n\nIt was discovered that the implementation of X.25 network protocols in the \nLinux kernel did not terminate link layer sessions properly. A local \nattacker could possibly use this to cause a denial of service (system \ncrash). (CVE-2022-1516)\n\nDemi Marie Obenour and Simon Gaiser discovered that several Xen para- \nvirtualization device frontends did not properly restrict the access rights \nof device backends. An attacker could possibly use a malicious Xen backend \nto gain access to memory pages of a guest VM or cause a denial of service \nin the guest. (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, \nCVE-2022-23039, CVE-2022-23040, CVE-2022-23041, CVE-2022-23042)\n\nIt was discovered that the USB Gadget file system interface in the Linux \nkernel contained a use-after-free vulnerability. A local attacker could use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2022-24958)\n\nIt was discovered that the USB SR9700 ethernet device driver for the Linux \nkernel did not properly validate the length of requests from the device. A \nphysically proximate attacker could possibly use this to expose sensitive \ninformation (kernel memory). (CVE-2022-26966)\n\n\u8d75\u5b50\u8f69 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not \nproperly perform reference counting in some error conditions. A local \nattacker could use this to cause a denial of service. (CVE-2022-28356)\n\nIt was discovered that the Microchip CAN BUS Analyzer interface \nimplementation in the Linux kernel did not properly handle certain error \nconditions, leading to a double-free. A local attacker could possibly use \nthis to cause a denial of service (system crash). (CVE-2022-28389)\n\nIt was discovered that the EMS CAN/USB interface implementation in the \nLinux kernel contained a double-free vulnerability when handling certain \nerror conditions. A local attacker could use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-28390)\n", "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": "ubuntu", "title": "Linux kernel vulnerabilities", "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-2021-3772", "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": "2022-06-08T00:00:00", "id": "USN-5467-1", "href": "https://ubuntu.com/security/notices/USN-5467-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-01-26T15:12:10", "description": "## Releases\n\n * Ubuntu 22.04 LTS\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-azure \\- Linux kernel for Microsoft Azure Cloud systems\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gke \\- Linux kernel for Google Container Engine (GKE) systems\n * linux-ibm \\- Linux kernel for IBM cloud systems\n * linux-intel-iotg \\- Linux kernel for Intel IoT platforms\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-lowlatency \\- Linux low latency kernel\n * linux-oracle \\- Linux kernel for Oracle Cloud systems\n * linux-raspi \\- Linux kernel for Raspberry Pi systems\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nAaron Adams discovered that the netfilter subsystem in the Linux kernel did \nnot properly handle the removal of stateful expressions in some situations, \nleading to a use-after-free vulnerability. A local attacker could use this \nto cause a denial of service (system crash) or execute arbitrary code. \n(CVE-2022-1966)\n\nBilly Jheng Bing Jhong discovered that the CIFS network file system \nimplementation in the Linux kernel did not properly validate arguments to \nioctl() in some situations. A local attacker could possibly use this to \ncause a denial of service (system crash). (CVE-2022-0168)\n\nHu Jiahui discovered that multiple race conditions existed in the Advanced \nLinux Sound Architecture (ALSA) framework, leading to use-after-free \nvulnerabilities. A local attacker could use these to cause a denial of \nservice (system crash) or possibly execute arbitrary code. (CVE-2022-1048)\n\nQiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM \nimplementation in the Linux kernel did not properly perform guest page \ntable updates in some situations. An attacker in a guest vm could possibly \nuse this to crash the host OS. (CVE-2022-1158)\n\nIt was discovered that the implementation of the 6pack and mkiss protocols \nin the Linux kernel did not handle detach events properly in some \nsituations, leading to a use-after-free vulnerability. A local attacker \ncould possibly use this to cause a denial of service (system crash). \n(CVE-2022-1195)\n\nDuoming Zhou discovered that the 6pack protocol implementation in the Linux \nkernel did not handle detach events properly in some situations, leading to \na use-after-free vulnerability. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-1198)\n\nDuoming Zhou discovered that the AX.25 amateur radio protocol \nimplementation in the Linux kernel did not handle detach events properly in \nsome situations. A local attacker could possibly use this to cause a denial \nof service (system crash) or execute arbitrary code. (CVE-2022-1199)\n\nDuoming Zhou discovered race conditions in the AX.25 amateur radio protocol \nimplementation in the Linux kernel during device detach operations. A local \nattacker could possibly use this to cause a denial of service (system \ncrash). (CVE-2022-1204)\n\nDuoming Zhou discovered race conditions in the AX.25 amateur radio protocol \nimplementation in the Linux kernel, leading to use-after-free \nvulnerabilities. A local attacker could possibly use this to cause a denial \nof service (system crash). (CVE-2022-1205)\n\nQiuhao Li, Gaoning Pan, and Yongkang Jia discovered that the kvm \nimplementation in the Linux kernel did not handle releasing a virtual cpu \nproperly. A local attacker in a guest VM coud possibly use this to cause a \ndenial of service (host system crash). (CVE-2022-1263)\n\nIt was discovered that the PF_KEYv2 implementation in the Linux kernel did \nnot properly initialize kernel memory in some situations. A local attacker \ncould use this to expose sensitive information (kernel memory). \n(CVE-2022-1353)\n\nIt was discovered that the implementation of X.25 network protocols in the \nLinux kernel did not terminate link layer sessions properly. A local \nattacker could possibly use this to cause a denial of service (system \ncrash). (CVE-2022-1516)\n\nIt was discovered that the ACRN Hypervisor Service Module implementation in \nthe Linux kernel did not properly deallocate memory in some situations. A \nlocal privileged attacker could possibly use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-1651)\n\nIt was discovered that the RxRPC session socket implementation in the Linux \nkernel did not properly handle ioctls called when no security protocol is \ngiven. A local attacker could use this to cause a denial of service (system \ncrash) or possibly expose sensitive information (kernel memory). \n(CVE-2022-1671)\n\nZiming Zhang discovered that the netfilter subsystem in the Linux kernel \ndid not properly validate sets with multiple ranged fields. A local \nattacker could use this to cause a denial of service or execute arbitrary \ncode. (CVE-2022-1972)\n\n\u8d75\u5b50\u8f69 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not \nproperly perform reference counting in some error conditions. A local \nattacker could use this to cause a denial of service. (CVE-2022-28356)\n\nIt was discovered that the 8 Devices USB2CAN interface implementation in \nthe Linux kernel did not properly handle certain error conditions, leading \nto a double-free. A local attacker could possibly use this to cause a \ndenial of service (system crash). (CVE-2022-28388)\n\nIt was discovered that the Microchip CAN BUS Analyzer interface \nimplementation in the Linux kernel did not properly handle certain error \nconditions, leading to a double-free. A local attacker could possibly use \nthis to cause a denial of service (system crash). (CVE-2022-28389)\n\nIt was discovered that the EMS CAN/USB interface implementation in the \nLinux kernel contained a double-free vulnerability when handling certain \nerror conditions. A local attacker could use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-28390)\n", "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": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 6.9, "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0168", "CVE-2022-1048", "CVE-2022-1158", "CVE-2022-1195", "CVE-2022-1198", "CVE-2022-1199", "CVE-2022-1204", "CVE-2022-1205", "CVE-2022-1263", "CVE-2022-1353", "CVE-2022-1516", "CVE-2022-1651", "CVE-2022-1671", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499", "CVE-2022-28356", "CVE-2022-28388", "CVE-2022-28389", "CVE-2022-28390"], "modified": "2022-06-08T00:00:00", "id": "USN-5469-1", "href": "https://ubuntu.com/security/notices/USN-5469-1", "cvss": {"score": 6.9, "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-01-26T15:11:34", "description": "## Releases\n\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * linux \\- Linux kernel\n\nIt was discovered that the Linux kernel did not properly restrict access to \nthe kernel debugger when booted in secure boot environments. A privileged \nattacker could use this to bypass UEFI Secure Boot restrictions. \n(CVE-2022-21499)\n\nIt was discovered that a race condition existed in the network scheduling \nsubsystem of the Linux kernel, leading to a use-after-free vulnerability. A \nlocal attacker could use this to cause a denial of service (system crash) \nor possibly execute arbitrary code. (CVE-2021-39713)\n\nIt was discovered that some Intel processors did not completely perform \ncleanup actions on multi-core shared buffers. A local attacker could \npossibly use this to expose sensitive information. (CVE-2022-21123)\n\nIt was discovered that some Intel processors did not completely perform \ncleanup actions on microarchitectural fill buffers. A local attacker could \npossibly use this to expose sensitive information. (CVE-2022-21125)\n\nIt was discovered that some Intel processors did not properly perform \ncleanup during specific special register write operations. A local attacker \ncould possibly use this to expose sensitive information. (CVE-2022-21166)\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": "2022-06-16T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 6.9, "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-39713", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-21499"], "modified": "2022-06-16T00:00:00", "id": "USN-5484-1", "href": "https://ubuntu.com/security/notices/USN-5484-1", "cvss": {"score": 6.9, "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-01-26T15:13:22", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-kvm \\- Linux kernel for cloud environments\n * linux-lts-xenial \\- Linux hardware enablement kernel from Xenial for Trusty\n\nJeremy Cline discovered a use-after-free in the nouveau graphics driver of \nthe Linux kernel during device removal. A privileged or physically \nproximate attacker could use this to cause a denial of service (system \ncrash). (CVE-2020-27820)\n\nIt was discovered that a race condition existed in the network scheduling \nsubsystem of the Linux kernel, leading to a use-after-free vulnerability. A \nlocal attacker could use this to cause a denial of service (system crash) \nor possibly execute arbitrary code. (CVE-2021-39713)\n\nIt was discovered that the Parallel NFS (pNFS) implementation in the Linux \nkernel did not properly perform bounds checking in some situations. An \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2021-4157)\n\nIt was discovered that the ST21NFCA NFC driver in the Linux kernel did not \nproperly validate the size of certain data in EVT_TRANSACTION events. A \nphysically proximate attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2022-26490)\n\nIt was discovered that the Xilinx USB2 device gadget driver in the Linux \nkernel did not properly validate endpoint indices from the host. A \nphysically proximate attacker could possibly use this to cause a denial of \nservice (system crash). (CVE-2022-27223)\n\nIt was discovered that the EMS CAN/USB interface implementation in the \nLinux kernel contained a double-free vulnerability when handling certain \nerror conditions. A local attacker could use this to cause a denial of \nservice (memory exhaustion). (CVE-2022-28390)\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": "2022-05-12T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 4.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.4, "vectorString": "AV:A/AC:M/Au:S/C:C/I:C/A:C", "version": "2.0", "accessVector": "ADJACENT_NETWORK", "authentication": "SINGLE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27820", "CVE-2021-39713", "CVE-2021-4157", "CVE-2022-26490", "CVE-2022-27223", "CVE-2022-28390"], "modified": "2022-05-12T00:00:00", "id": "USN-5413-1", "href": "https://ubuntu.com/security/notices/USN-5413-1", "cvss": {"score": 7.4, "vector": "AV:A/AC:M/Au:S/C:C/I:C/A:C"}}], "nessus": [{"lastseen": "2023-01-19T16:30:33", "description": "The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5470-1 advisory.\n\n - KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown.\n An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H). (CVE-2022-21499)\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\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {"exploitabilityScore": 0.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "baseScore": 6.7, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/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 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5470-1)", "bulletinFamily": "scanner", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-1836", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-21499"], "modified": "2023-01-17T00:00:00", "cpe": ["cpe:/o:canonical:ubuntu_linux:20.04:-:lts", "p-cpe:/a:canonical:ubuntu_linux:linux-image-5.14.0-1042-oem", "p-cpe:/a:canonical:ubuntu_linux:linux-image-oem"], "id": "UBUNTU_USN-5470-1.NASL", "href": "https://www.tenable.com/plugins/nessus/161959", "sourceData": "##\n# (C) Tenable, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from Ubuntu Security Notice USN-5470-1. 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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. 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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 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 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 io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system. (CVE-2022-1786)\n\n - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.\n (CVE-2022-1789)\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 - KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown.\n An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H). (CVE-2022-21499)\n\n - The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets are in the intended state. 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