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{"id": "MARINER_KERNEL_CVE-2022-33744.NASL", "vendorId": null, "type": "nessus", "bulletinFamily": "scanner", "title": "CBL Mariner 2.0 Security Update: kernel (CVE-2022-33744)", "description": "The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-33744 advisory.\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. 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{"osv": [{"lastseen": "2022-11-19T18:37:22", "description": "Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. 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Additionally it\n was discovered that the granularity of the grant table doesn't permit\n sharing less than a 4k page, which may also result in information\n disclosure.\n* [CVE-2022-33743](https://security-tracker.debian.org/tracker/CVE-2022-33743)\nJan Beulich discovered that incorrect memory handling in the Xen\n network backend may lead to denial of service.\n* [CVE-2022-33744](https://security-tracker.debian.org/tracker/CVE-2022-33744)\nOleksandr Tyshchenko discovered that ARM Xen guests can cause a denial\n of service to the Dom0 via paravirtual devices.\n* [CVE-2022-34918](https://security-tracker.debian.org/tracker/CVE-2022-34918)\nArthur Mongodin discovered a heap buffer overflow in the Netfilter\n subsystem which may result in local privilege escalation.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 5.10.127-2.\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": "2022-07-26T00:00:00", "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-2022-2318", "CVE-2021-33655", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33742", "CVE-2022-33741", "CVE-2022-33743", "CVE-2022-34918", "CVE-2022-33744"], "modified": "2022-08-10T07:07:12", "id": "OSV:DSA-5191-1", "href": "https://osv.dev/vulnerability/DSA-5191-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-10-02T19:26:58", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that\nmay lead to privilege escalation, denial of service or information\nleaks.\n\n\n* [CVE-2021-4159](https://security-tracker.debian.org/tracker/CVE-2021-4159)\nA flaw was found in the eBPF verifier which could lead to an\n out-of-bounds read. If unprivileged use of eBPF is enabled, this\n could leak sensitive information. This was already disabled by\n default, which would fully mitigate the vulnerability.\n* [CVE-2021-33655](https://security-tracker.debian.org/tracker/CVE-2021-33655)\nA user with access to a framebuffer console device could cause a\n memory out-of-bounds write via the FBIOPUT\\_VSCREENINFO ioctl.\n* [CVE-2021-33656](https://security-tracker.debian.org/tracker/CVE-2021-33656)\nA user with access to a framebuffer console device could cause a\n memory out-of-bounds write via some font setting ioctls. These\n obsolete ioctls have been removed.\n* [CVE-2022-1462](https://security-tracker.debian.org/tracker/CVE-2022-1462)\n\u00e4\u00b8\u0080\u013a\u008f\u015e\u00e7\u008b\u0097 reported a race condition in the pty (pseudo-terminal)\n subsystem that can lead to a slab out-of-bounds write. A local\n user could exploit this to cause a denial of service (crash or\n memory corruption) or possibly for privilege escalation.\n* [CVE-2022-1679](https://security-tracker.debian.org/tracker/CVE-2022-1679)\nThe syzbot tool found a race condition in the ath9k\\_htc driver\n which can lead to a use-after-free. This might be exploitable to\n cause a denial service (crash or memory corruption) or possibly\n for privilege escalation.\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-2022-2318](https://security-tracker.debian.org/tracker/CVE-2022-2318)\nA use-after-free in the Amateur Radio X.25 PLP (Rose) support may\n result in denial of service.\n* [CVE-2022-2586](https://security-tracker.debian.org/tracker/CVE-2022-2586)\nA use-after-free in the Netfilter subsystem may result in local\n privilege escalation for a user with the CAP\\_NET\\_ADMIN capability\n in any user or network namespace.\n* [CVE-2022-2588](https://security-tracker.debian.org/tracker/CVE-2022-2588)\nZhenpeng Lin discovered a use-after-free flaw in the cls\\_route\n filter implementation which may result in local privilege\n escalation for a user with the CAP\\_NET\\_ADMIN capability in any\n user or network namespace.\n* [CVE-2022-2663](https://security-tracker.debian.org/tracker/CVE-2022-2663)\nDavid Leadbeater reported flaws in the nf\\_conntrack\\_irc\n connection-tracking protocol module. When this module is enabled\n on a firewall, an external user on the same IRC network as an\n internal user could exploit its lax parsing to open arbitrary TCP\n ports in the firewall, to reveal their public IP address, or to\n block their IRC connection at the firewall.\n* [CVE-2022-3028](https://security-tracker.debian.org/tracker/CVE-2022-3028)\nAbhishek Shah reported a race condition in the AF\\_KEY subsystem,\n which could lead to an out-of-bounds write or read. A local user\n could exploit this to cause a denial of service (crash or memory\n corruption), to obtain sensitive information, or possibly for\n privilege escalation.\n* [CVE-2022-26365](https://security-tracker.debian.org/tracker/CVE-2022-26365), [CVE-2022-33740](https://security-tracker.debian.org/tracker/CVE-2022-33740), [CVE-2022-33741](https://security-tracker.debian.org/tracker/CVE-2022-33741), [CVE-2022-33742](https://security-tracker.debian.org/tracker/CVE-2022-33742)\nRoger Pau Monne discovered that Xen block and network PV device\n frontends don't zero out memory regions before sharing them with\n the backend, which may result in information disclosure.\n Additionally it was discovered that the granularity of the grant\n table doesn't permit sharing less than a 4k page, which may also\n result in information disclosure.\n* [CVE-2022-26373](https://security-tracker.debian.org/tracker/CVE-2022-26373)\nIt was discovered that on certain processors with Intel's Enhanced\n Indirect Branch Restricted Speculation (eIBRS) capabilities there\n are exceptions to the documented properties in some situations,\n which may result in information disclosure.\n\n\nIntel's explanation of the issue can be found at\n <https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/post-barrier-return-stack-buffer-predictions.html>\n* [CVE-2022-33744](https://security-tracker.debian.org/tracker/CVE-2022-33744)\nOleksandr Tyshchenko discovered that ARM Xen guests can cause a\n denial of service to the Dom0 via paravirtual devices.\n* [CVE-2022-36879](https://security-tracker.debian.org/tracker/CVE-2022-36879)\nA flaw was discovered in xfrm\\_expand\\_policies in the xfrm\n subsystem which can cause a reference count to be dropped twice.\n* [CVE-2022-36946](https://security-tracker.debian.org/tracker/CVE-2022-36946)\nDomingo Dirutigliano and Nicola Guerrera reported a memory\n corruption flaw in the Netfilter subsystem which may result in\n denial of service.\n* [CVE-2022-39188](https://security-tracker.debian.org/tracker/CVE-2022-39188)\nJann Horn reported a race condition in the kernel's handling of\n unmapping of certain memory ranges. When a driver created a\n memory mapping with the VM\\_PFNMAP flag, which many GPU drivers do,\n the memory mapping could be removed and freed before it was\n flushed from the CPU TLBs. This could result in a page\n use\u00e2\u0080\u0094after-free. A local user with access to such a device could\n exploit this to cause a denial of service (crash or memory\n corruption) or possibly for privilege escalation.\n* [CVE-2022-39842](https://security-tracker.debian.org/tracker/CVE-2022-39842)\nAn integer overflow was discovered in the pxa3xx-gcu video driver\n which could lead to a heap out-of-bounds write.\n\n\nThis driver is not enabled in Debian's official kernel\n configurations.\n* [CVE-2022-40307](https://security-tracker.debian.org/tracker/CVE-2022-40307)\nA race condition was discovered in the EFI capsule-loader driver,\n which could lead to use-after-free. A local user permitted to\n access this device (/dev/efi\\_capsule\\_loader) could exploit this to\n cause a denial of service (crash or memory corruption) or possibly\n for privilege escalation. However, this device is normally only\n accessible by the root user.\n\n\nFor Debian 10 buster, these problems have been fixed in version\n4.19.260-1.\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": 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": "2022-10-02T00:00:00", "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-2022-2586", "CVE-2022-36946", "CVE-2022-40307", "CVE-2022-2318", "CVE-2021-33655", "CVE-2022-2588", "CVE-2022-2153", "CVE-2022-39188", "CVE-2022-26365", "CVE-2021-33656", "CVE-2022-36879", "CVE-2022-39842", "CVE-2022-33740", "CVE-2022-2663", "CVE-2022-26373", "CVE-2022-3028", "CVE-2022-33742", "CVE-2022-1462", "CVE-2022-33741", "CVE-2022-33744", "CVE-2021-4159", "CVE-2022-1679"], "modified": "2022-10-02T19:26:56", "id": "OSV:DLA-3131-1", "href": "https://osv.dev/vulnerability/DLA-3131-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "debiancve": [{"lastseen": "2023-06-03T14:41:28", "description": "Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-07-05T13:15:00", "type": "debiancve", "title": "CVE-2022-33744", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 1.9, "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-33744"], "modified": "2022-07-05T13:15:00", "id": "DEBIANCVE:CVE-2022-33744", "href": "https://security-tracker.debian.org/tracker/CVE-2022-33744", "cvss": {"score": 1.9, "vector": "AV:L/AC:M/Au:N/C:N/I:N/A:P"}}], "cve": [{"lastseen": "2023-06-03T14:45:59", "description": "Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-07-05T13:15:00", "type": "cve", "title": "CVE-2022-33744", "cwe": ["NVD-CWE-noinfo"], "bulletinFamily": "NVD", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 1.9, "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-33744"], "modified": "2022-10-29T02:50:00", "cpe": ["cpe:/o:debian:debian_linux:11.0", "cpe:/o:debian:debian_linux:10.0", "cpe:/o:linux:linux_kernel:5.18"], "id": "CVE-2022-33744", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-33744", "cvss": {"score": 1.9, "vector": "AV:L/AC:M/Au:N/C:N/I:N/A:P"}, "cpe23": ["cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "cpe:2.3:o:linux:linux_kernel:5.18:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"]}], "ubuntucve": [{"lastseen": "2023-06-04T13:20:07", "description": "Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests\non Arm, dom0 is using an rbtree to keep track of the foreign mappings.\nUpdating of that rbtree is not always done completely with the related lock\nheld, resulting in a small race window, which can be used by unprivileged\nguests via PV devices to cause inconsistencies of the rbtree. These\ninconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by\ncausing crashes or the inability to perform further mappings of other\nguests' memory pages.\n\n#### Notes\n\nAuthor| Note \n---|--- \n[sbeattie](<https://launchpad.net/~sbeattie>) | according to the Xen advisory, introduced in 3.13.\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-07-05T00:00:00", "type": "ubuntucve", "title": "CVE-2022-33744", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 1.9, "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-33744"], "modified": "2022-07-05T00:00:00", "id": "UB:CVE-2022-33744", "href": "https://ubuntu.com/security/CVE-2022-33744", "cvss": {"score": 1.9, "vector": "AV:L/AC:M/Au:N/C:N/I:N/A:P"}}], "xen": [{"lastseen": "2023-06-03T15:09:41", "description": "#### ISSUE DESCRIPTION\nWhen mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings.\nUpdating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.\n#### IMPACT\nA guest performing multiple I/Os of PV devices in parallel can cause DoS of dom0 and thus of the complete host.\n#### VULNERABLE SYSTEMS\nOnly Arm systems (32-bit and 64-bit) are vulnerable. Dom0 Linux versions 3.13 - 5.18 are vulnerable.\nX86 systems are not vulnerable.\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-07-05T10:44:00", "type": "xen", "title": "Arm guests can cause Dom0 DoS via PV devices", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 1.9, "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-33744"], "modified": "2022-07-05T10:44:00", "id": "XSA-406", "href": "http://xenbits.xen.org/xsa/advisory-406.html", "cvss": {"score": 1.9, "vector": "AV:L/AC:M/Au:N/C:N/I:N/A:P"}}], "veracode": [{"lastseen": "2023-06-03T20:14:00", "description": "xen is vulnerable to denial of service. The vulnerability exists because when mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings which allows an attacker to cause an application crash.\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-11-25T18:46:43", "type": "veracode", "title": "Denial Of Service (DoS)", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 1.9, "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-33744"], "modified": "2022-11-28T08:47:40", "id": "VERACODE:38255", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-38255/summary", "cvss": {"score": 1.9, "vector": "AV:L/AC:M/Au:N/C:N/I:N/A:P"}}], "nessus": [{"lastseen": "2023-05-17T16:32:53", "description": "The version of kernel installed on the remote host is prior to 5.4.204-113.362. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-033 advisory.\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2022-07-22T00:00:00", "type": "nessus", "title": "Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-033)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-07-22T00:00:00", "cpe": ["p-cpe:/a:amazon:linux:bpftool", "p-cpe:/a:amazon:linux:bpftool-debuginfo", "p-cpe:/a:amazon:linux:kernel", "p-cpe:/a:amazon:linux:kernel-debuginfo", "p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64", "p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64", "p-cpe:/a:amazon:linux:kernel-devel", "p-cpe:/a:amazon:linux:kernel-headers", "p-cpe:/a:amazon:linux:kernel-tools", "p-cpe:/a:amazon:linux:kernel-tools-debuginfo", "p-cpe:/a:amazon:linux:kernel-tools-devel", "p-cpe:/a:amazon:linux:perf", "p-cpe:/a:amazon:linux:perf-debuginfo", "p-cpe:/a:amazon:linux:python-perf", "p-cpe:/a:amazon:linux:python-perf-debuginfo", "cpe:/o:amazon:linux:2"], "id": "AL2_ALASKERNEL-5_4-2022-033.NASL", "href": "https://www.tenable.com/plugins/nessus/163385", "sourceData": "##\n# (C) Tenable, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from Amazon Linux 2 Security Advisory ALASKERNEL-5.4-2022-033.\n##\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(163385);\n script_version(\"1.2\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/07/22\");\n\n script_cve_id(\n \"CVE-2022-26365\",\n \"CVE-2022-33740\",\n \"CVE-2022-33741\",\n \"CVE-2022-33742\",\n \"CVE-2022-33744\"\n );\n\n script_name(english:\"Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-033)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Amazon Linux 2 host is missing a security update.\");\n script_set_attribute(attribute:\"description\", value:\n\"The version of kernel installed on the remote host is prior to 5.4.204-113.362. It is, therefore, affected by multiple\nvulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-033 advisory.\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text\n explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device\n frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to\n unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend\n (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree\n to keep track of the foreign mappings. 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package_array['reference'];\n if (release && prefix && reference) {\n if (deb_check(release:release, prefix:prefix, reference:reference)) flag++;\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : deb_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = deb_pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'affs-modules-5.10.0-13-4kc-malta-di / etc');\n}\n", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-05-17T16:35:07", "description": "The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5648-1 advisory.\n\n - When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds. (CVE-2021-33655)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed. (CVE-2022-33743)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\n - rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free. (CVE-2022-34494)\n\n - rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.\n (CVE-2022-34495)\n\n - nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len. 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This could lead to local escalation of privilege when opening and closing inet sockets with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)\n\n - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream kernel (CVE-2022-20154)\n\n - In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-182388481References: Upstream kernel (CVE-2022-20166)\n\n - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. (CVE-2022-2153)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - 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 (CVE-2022-32296)\n\n - An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point registers. (CVE-2022-32981)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\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\n - An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c. (CVE-2022-34918)\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": {}, "published": "2022-10-08T00:00:00", "type": "nessus", "title": "EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-2415)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-33656", "CVE-2022-1975", "CVE-2022-20009", "CVE-2022-20132", "CVE-2022-20141", "CVE-2022-20154", "CVE-2022-20166", "CVE-2022-2153", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-32981", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744", "CVE-2022-33981", "CVE-2022-34918"], "modified": "2023-01-13T00:00:00", "cpe": ["p-cpe:/a:huawei:euleros:kernel", "p-cpe:/a:huawei:euleros:kernel-abi-stablelists", "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-2022-2415.NASL", "href": "https://www.tenable.com/plugins/nessus/165829", "sourceData": "#%NASL_MIN_LEVEL 80900\n##\n# (C) Tenable, Inc.\n##\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(165829);\n script_version(\"1.5\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2023/01/13\");\n\n script_cve_id(\n \"CVE-2021-33656\",\n \"CVE-2022-1975\",\n \"CVE-2022-2153\",\n \"CVE-2022-2318\",\n \"CVE-2022-20009\",\n \"CVE-2022-20132\",\n \"CVE-2022-20141\",\n \"CVE-2022-20154\",\n \"CVE-2022-20166\",\n \"CVE-2022-26365\",\n \"CVE-2022-32296\",\n \"CVE-2022-32981\",\n \"CVE-2022-33740\",\n \"CVE-2022-33741\",\n \"CVE-2022-33742\",\n \"CVE-2022-33744\",\n \"CVE-2022-33981\",\n \"CVE-2022-34918\"\n );\n\n script_name(english:\"EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-2415)\");\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 - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.\n (CVE-2021-33656)\n\n - There is a sleep-in-atomic bug in /net/nfc/netlink.c that allows an attacker to crash the Linux kernel by\n simulating a nfc device from user-space. 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(CVE-2021-33061)\n\n - When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds. (CVE-2021-33655)\n\n - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. (CVE-2022-1012)\n\n - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc. (CVE-2022-1729)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU. (CVE-2022-1852)\n\n - A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way user triggers some file operation which triggers udf_write_fi(). A local user could use this flaw to crash the system or potentially (CVE-2022-1943)\n\n - A use-after-free flaw was found in the Linux kernel in log_replay in fs/ntfs3/fslog.c in the NTFS journal.\n This flaw allows a local attacker to crash the system and leads to a kernel information leak problem.\n (CVE-2022-1973)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)\n\n - An out-of-bounds memory access flaw was found in the Linux kernel Intel's iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system. (CVE-2022-2873)\n\n - A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring().\n The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper locking when performing operations on an object. This flaw allows a local user to crash the system or escalate their privileges on the system. (CVE-2022-2959)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\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 - network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed. (CVE-2022-33743)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\n - rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free. (CVE-2022-34494)\n\n - rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.\n (CVE-2022-34495)\n\n - nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len. 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(CVE-2021-33061)\n\n - When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of\n bounds. (CVE-2021-33655)\n\n - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the\n small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of\n service problem. (CVE-2022-1012)\n\n - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged\n user to gain root privileges. The bug allows to build several exploit primitives such as kernel address\n information leak, arbitrary execution, etc. (CVE-2022-1729)\n\n - A NULL pointer dereference flaw was found in the Linux kernel's KVM module, which can lead to a denial of\n service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal\n instruction in guest in the Intel CPU. (CVE-2022-1852)\n\n - A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way\n user triggers some file operation which triggers udf_write_fi(). A local user could use this flaw to crash\n the system or potentially (CVE-2022-1943)\n\n - A use-after-free flaw was found in the Linux kernel in log_replay in fs/ntfs3/fslog.c in the NTFS journal.\n This flaw allows a local attacker to crash the system and leads to a kernel information leak problem.\n (CVE-2022-1973)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that\n allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to\n restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently\n allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass\n verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and\n unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for\n peripherals that do not verify firmware updates. We recommend upgrading past commit\n 4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)\n\n - An out-of-bounds memory access flaw was found in the Linux kernel Intel's iSMT SMBus host controller\n driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input\n data. This flaw allows a local user to crash the system. (CVE-2022-2873)\n\n - A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring().\n The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper\n locking when performing operations on an object. This flaw allows a local user to crash the system or\n escalate their privileges on the system. (CVE-2022-2959)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text\n explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device\n frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to\n unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend\n (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are\n used. (CVE-2022-32296)\n\n - network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data\n Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further\n processing to nevertheless be freed. (CVE-2022-33743)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree\n to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the\n related lock held, resulting in a small race window, which can be used by unprivileged guests via PV\n devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS)\n of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory\n pages. (CVE-2022-33744)\n\n - rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a\n double free. (CVE-2022-34494)\n\n - rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.\n (CVE-2022-34495)\n\n - nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote\n attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte\n nfta_payload attribute, an skb_pull can encounter a negative skb->len. 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(CVE-2021-33655)\n\n - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.\n (CVE-2021-33656)\n\n - A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures.\n Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. (CVE-2021-4159)\n\n - An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462)\n\n - A use-after-free flaw was found in the Linux kernel's Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1679)\n\n - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. (CVE-2022-2153)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462) (CVE-2022-2586)\n\n - kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)\n\n - An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured. (CVE-2022-2663)\n\n - A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read and copying it into a socket. (CVE-2022-3028)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\n - An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. 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versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :\n\n - Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)\n\n - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.\n (CVE-2021-33656)\n\n - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-200688826References: Upstream kernel (CVE-2021-39686)\n\n - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system. (CVE-2022-1652)\n\n - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)\n\n - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc. (CVE-2022-1729)\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 - 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 - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds read due to improper input validation. This could lead to local information disclosure if a malicious USB HID device were plugged in, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream kernel (CVE-2022-20132)\n\n - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege when opening and closing inet sockets with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)\n\n - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream kernel (CVE-2022-20154)\n\n - In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-182388481References: Upstream kernel (CVE-2022-20166)\n\n - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. (CVE-2022-2153)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\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 - 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. This occurs because of use of Algorithm 4 ('Double-Hash Port Selection Algorithm') of RFC 6056.\n (CVE-2022-32296)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. 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(CVE-2022-2318)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text\n explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device\n frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to\n unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend\n (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to\n cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14\n and later versions. (CVE-2022-29581)\n\n - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create\n user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to\n 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\n used. This occurs because of use of Algorithm 4 ('Double-Hash Port Selection Algorithm') of RFC 6056.\n (CVE-2022-32296)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree\n to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the\n related lock held, resulting in a small race window, which can be used by unprivileged guests via PV\n devices to cause inconsistencies of the rbtree. 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(CVE-2022-34918)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security\nadvisory. 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(CVE-2021-33061)\n\n - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.\n (CVE-2021-33656)\n\n - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-200688826References: Upstream kernel (CVE-2021-39686)\n\n - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. (CVE-2022-1012)\n\n - A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device is detached and reclaim resources early. (CVE-2022-1195)\n\n - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system. (CVE-2022-1652)\n\n - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)\n\n - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc. (CVE-2022-1729)\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 - 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 - There is a sleep-in-atomic bug in /net/nfc/netlink.c that allows an attacker to crash the Linux kernel by simulating a nfc device from user-space. (CVE-2022-1975)\n\n - In various functions of the USB gadget subsystem, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-213172319References: Upstream kernel (CVE-2022-20009)\n\n - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds read due to improper input validation. This could lead to local information disclosure if a malicious USB HID device were plugged in, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream kernel (CVE-2022-20132)\n\n - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege when opening and closing inet sockets with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)\n\n - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream kernel (CVE-2022-20154)\n\n - In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-182388481References: Upstream kernel (CVE-2022-20166)\n\n - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. (CVE-2022-2153)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\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\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. This occurs because of use of Algorithm 4 ('Double-Hash Port Selection Algorithm') of RFC 6056.\n (CVE-2022-32296)\n\n - An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point registers. (CVE-2022-32981)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\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\n - An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c. (CVE-2022-34918)\n\nNote that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. 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(CVE-2021-33061)\n\n - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.\n (CVE-2021-33656)\n\n - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to\n a race condition. This could lead to local escalation of privilege with no additional execution privileges\n needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid\n ID: A-200688826References: Upstream kernel (CVE-2021-39686)\n\n - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the\n small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of\n service problem. (CVE-2022-1012)\n\n - A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a\n local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device\n is detached and reclaim resources early. (CVE-2022-1195)\n\n - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency\n use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker\n could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the\n system. (CVE-2022-1652)\n\n - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP\n pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)\n\n - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged\n user to gain root privileges. The bug allows to build several exploit primitives such as kernel address\n information leak, arbitrary execution, etc. (CVE-2022-1729)\n\n - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use\n after free both read or write when non synchronized between cleanup routine and firmware download routine.\n (CVE-2022-1734)\n\n - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID\n 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 - There is a sleep-in-atomic bug in /net/nfc/netlink.c that allows an attacker to crash the Linux kernel by\n simulating a nfc device from user-space. (CVE-2022-1975)\n\n - In various functions of the USB gadget subsystem, there is a possible out of bounds write due to a missing\n bounds check. This could lead to local escalation of privilege with no additional execution privileges\n needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid\n ID: A-213172319References: Upstream kernel (CVE-2022-20009)\n\n - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds\n read due to improper input validation. This could lead to local information disclosure if a malicious USB\n HID device were plugged in, with no additional execution privileges needed. User interaction is not needed\n for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream\n kernel (CVE-2022-20132)\n\n - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead\n to local escalation of privilege when opening and closing inet sockets with no additional execution\n privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android\n kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)\n\n - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead\n to local escalation of privilege with System execution privileges needed. User interaction is not needed\n for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream\n kernel (CVE-2022-20154)\n\n - In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer\n overflow. This could lead to local escalation of privilege with System execution privileges needed. User\n interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:\n A-182388481References: Upstream kernel (CVE-2022-20166)\n\n - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it\n possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This\n flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel\n oops condition that results in a denial of service. (CVE-2022-2153)\n\n - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that\n allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text\n explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device\n frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to\n unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend\n (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to\n cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14\n 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\n 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\n user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to\n 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\n used. This occurs because of use of Algorithm 4 ('Double-Hash Port Selection Algorithm') of RFC 6056.\n (CVE-2022-32296)\n\n - An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer\n overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point\n registers. 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It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2022-237-02 advisory.\n\n - When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds. (CVE-2021-33655)\n\n - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. (CVE-2022-1012)\n\n - An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462)\n\n - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system. (CVE-2022-1652)\n\n - A use-after-free flaw was found in the Linux kernel's Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1679)\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 - 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 NULL pointer dereference flaw was found in the Linux kernel's KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU. (CVE-2022-1852)\n\n - A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way user triggers some file operation which triggers udf_write_fi(). A local user could use this flaw to crash the system or potentially (CVE-2022-1943)\n\n - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-32250. Reason: This candidate is a duplicate of CVE-2022-32250. Notes: All CVE users should reference CVE-2022-32250 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage. (CVE-2022-1966)\n\n - A use-after-free flaw was found in the Linux kernel in log_replay in fs/ntfs3/fslog.c in the NTFS journal.\n This flaw allows a local attacker to crash the system and leads to a kernel information leak problem.\n (CVE-2022-1973)\n\n - A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and possibly to run code. (CVE-2022-2078)\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 - 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 - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)\n\n - An out-of-bounds memory access flaw was found in the Linux kernel Intel's iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system. (CVE-2022-2873)\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. (CVE-2022-28893)\n\n - Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29900)\n\n - Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29901)\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 - An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point registers. (CVE-2022-32981)\n\n - network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed. (CVE-2022-33743)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\n - rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free. (CVE-2022-34494)\n\n - rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.\n (CVE-2022-34495)\n\n - An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c. (CVE-2022-34918)\n\n - The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges. (CVE-2022-36123)\n\n - An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)\n\n - nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len. (CVE-2022-36946)\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) (CVE-2022-1184)\n\n - kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)\n\n - A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel's filesystem sub- component. This flaw allows a local attacker with a user privilege to cause a denial of service.\n (CVE-2022-1184) (CVE-2022-1972)\n\n - A bug in the IMA subsystem was discovered which would incorrectly allow kexec to be used when kernel lockdown was enabled (CVE-2022-21505) (CVE-2022-21505)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2022-08-26T00:00:00", "type": "nessus", "title": "Slackware Linux 15.0 kernel-generic Multiple Vulnerabilities (SSA:2022-237-02)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-33655", "CVE-2022-0494", "CVE-2022-1012", "CVE-2022-1184", "CVE-2022-1462", "CVE-2022-1652", "CVE-2022-1679", "CVE-2022-1729", "CVE-2022-1734", "CVE-2022-1789", "CVE-2022-1852", "CVE-2022-1943", "CVE-2022-1966", "CVE-2022-1972", "CVE-2022-1973", "CVE-2022-1974", "CVE-2022-1975", "CVE-2022-2078", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-21499", "CVE-2022-21505", "CVE-2022-2318", "CVE-2022-2503", "CVE-2022-2585", "CVE-2022-2586", "CVE-2022-2588", "CVE-2022-26365", "CVE-2022-26373", "CVE-2022-2873", "CVE-2022-28893", "CVE-2022-29900", "CVE-2022-29901", "CVE-2022-32250", "CVE-2022-32296", "CVE-2022-32981", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34494", "CVE-2022-34495", "CVE-2022-34918", "CVE-2022-36123", "CVE-2022-36879", "CVE-2022-36946"], "modified": "2023-01-12T00:00:00", "cpe": ["p-cpe:/a:slackware:slackware_linux:kernel-generic", "p-cpe:/a:slackware:slackware_linux:kernel-generic-smp", "p-cpe:/a:slackware:slackware_linux:kernel-headers", "p-cpe:/a:slackware:slackware_linux:kernel-huge", "p-cpe:/a:slackware:slackware_linux:kernel-huge-smp", "p-cpe:/a:slackware:slackware_linux:kernel-modules", "p-cpe:/a:slackware:slackware_linux:kernel-modules-smp", "p-cpe:/a:slackware:slackware_linux:kernel-source", "cpe:/o:slackware:slackware_linux:15.0"], "id": "SLACKWARE_SSA_2022-237-02.NASL", "href": "https://www.tenable.com/plugins/nessus/164458", "sourceData": "#%NASL_MIN_LEVEL 80900\n##\n# (C) Tenable, Inc.\n##\n#\n# The descriptive text and package checks in this plugin were\n# extracted from Slackware Security Advisory SSA:2022-237-02. The text\n# itself is copyright (C) Slackware Linux, Inc.\n##\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(164458);\n script_version(\"1.5\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2023/01/12\");\n\n script_cve_id(\n \"CVE-2021-33655\",\n \"CVE-2022-1012\",\n \"CVE-2022-1184\",\n \"CVE-2022-1462\",\n \"CVE-2022-1652\",\n \"CVE-2022-1679\",\n \"CVE-2022-1729\",\n \"CVE-2022-1734\",\n \"CVE-2022-1789\",\n \"CVE-2022-1852\",\n \"CVE-2022-1943\",\n \"CVE-2022-1966\",\n \"CVE-2022-1972\",\n \"CVE-2022-1973\",\n \"CVE-2022-1974\",\n \"CVE-2022-1975\",\n \"CVE-2022-2078\",\n \"CVE-2022-2318\",\n \"CVE-2022-2503\",\n \"CVE-2022-2585\",\n \"CVE-2022-2586\",\n \"CVE-2022-2588\",\n \"CVE-2022-2873\",\n \"CVE-2022-21123\",\n \"CVE-2022-21125\",\n \"CVE-2022-21166\",\n \"CVE-2022-21499\",\n \"CVE-2022-21505\",\n \"CVE-2022-26365\",\n \"CVE-2022-26373\",\n \"CVE-2022-28893\",\n \"CVE-2022-29900\",\n \"CVE-2022-29901\",\n \"CVE-2022-32250\",\n \"CVE-2022-32296\",\n \"CVE-2022-32981\",\n \"CVE-2022-33740\",\n \"CVE-2022-33741\",\n \"CVE-2022-33742\",\n \"CVE-2022-33743\",\n \"CVE-2022-33744\",\n \"CVE-2022-34494\",\n \"CVE-2022-34495\",\n \"CVE-2022-34918\",\n \"CVE-2022-36123\",\n \"CVE-2022-36879\",\n \"CVE-2022-36946\"\n );\n\n script_name(english:\"Slackware Linux 15.0 kernel-generic Multiple Vulnerabilities (SSA:2022-237-02)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Slackware Linux host is missing a security update to kernel-generic.\");\n script_set_attribute(attribute:\"description\", value:\n\"The version of kernel-generic installed on the remote host is prior to 5.15.63 / 5.15.63_smp. It is, therefore, affected\nby multiple vulnerabilities as referenced in the SSA:2022-237-02 advisory.\n\n - When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of\n bounds. (CVE-2021-33655)\n\n - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the\n small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of\n service problem. (CVE-2022-1012)\n\n - An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a\n user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage\n of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read\n unauthorized random data from memory. (CVE-2022-1462)\n\n - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency\n use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker\n could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the\n system. (CVE-2022-1652)\n\n - A use-after-free flaw was found in the Linux kernel's Atheros wireless adapter driver in the way a user\n forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local\n user to crash or potentially escalate their privileges on the system. (CVE-2022-1679)\n\n - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use\n after free both read or write when non synchronized between cleanup routine and firmware download routine.\n (CVE-2022-1734)\n\n - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID\n 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 NULL pointer dereference flaw was found in the Linux kernel's KVM module, which can lead to a denial of\n service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal\n instruction in guest in the Intel CPU. (CVE-2022-1852)\n\n - A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way\n user triggers some file operation which triggers udf_write_fi(). A local user could use this flaw to crash\n the system or potentially (CVE-2022-1943)\n\n - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-32250. Reason: This candidate is a\n duplicate of CVE-2022-32250. Notes: All CVE users should reference CVE-2022-32250 instead of this\n candidate. All references and descriptions in this candidate have been removed to prevent accidental\n usage. (CVE-2022-1966)\n\n - A use-after-free flaw was found in the Linux kernel in log_replay in fs/ntfs3/fslog.c in the NTFS journal.\n This flaw allows a local attacker to crash the system and leads to a kernel information leak problem.\n (CVE-2022-1973)\n\n - A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an\n attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and\n possibly to run code. (CVE-2022-2078)\n\n - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated\n 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\n 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\n authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)\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\n respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and\n 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 - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that\n allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\n - Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to\n restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently\n allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass\n verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and\n unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for\n peripherals that do not verify firmware updates. We recommend upgrading past commit\n 4caae58406f8ceb741603eee460d79bacca9b1b5 (CVE-2022-2503)\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text\n explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device\n frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to\n unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend\n (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)\n\n - Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow\n an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)\n\n - An out-of-bounds memory access flaw was found in the Linux kernel Intel's iSMT SMBus host controller\n driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input\n data. This flaw allows a local user to crash the system. (CVE-2022-2873)\n\n - The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets\n are in the intended state. (CVE-2022-28893)\n\n - Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution\n under certain microarchitecture-dependent conditions. (CVE-2022-29900)\n\n - Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their\n retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can\n hijack return instructions to achieve arbitrary speculative code execution under certain\n microarchitecture-dependent conditions. (CVE-2022-29901)\n\n - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create\n user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to\n 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\n used. (CVE-2022-32296)\n\n - An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer\n overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point\n registers. (CVE-2022-32981)\n\n - network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data\n Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further\n processing to nevertheless be freed. (CVE-2022-33743)\n\n - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree\n to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the\n related lock held, resulting in a small race window, which can be used by unprivileged guests via PV\n devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS)\n of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory\n pages. (CVE-2022-33744)\n\n - rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a\n double free. (CVE-2022-34494)\n\n - rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.\n (CVE-2022-34495)\n\n - An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init\n (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different\n vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an\n unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data\n in net/netfilter/nf_tables_api.c. (CVE-2022-34918)\n\n - The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This\n allows Xen PV guest OS users to cause a denial of service or gain privileges. (CVE-2022-36123)\n\n - An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in\n net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)\n\n - nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote\n attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte\n nfta_payload attribute, an skb_pull can encounter a negative skb->len. (CVE-2022-36946)\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. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or\n CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494) (CVE-2022-1184)\n\n - kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)\n\n - A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel's filesystem sub-\n component. This flaw allows a local attacker with a user privilege to cause a denial of service.\n (CVE-2022-1184) (CVE-2022-1972)\n\n - A bug in the IMA subsystem was discovered which would incorrectly allow kexec to be used when kernel\n lockdown was enabled (CVE-2022-21505) (CVE-2022-21505)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version\nnumber.\");\n script_set_attribute(attribute:\"solution\", value:\n\"Upgrade the affected kernel-generic package.\");\n script_set_cvss_base_vector(\"CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2022-34918\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2022-1012\");\n\n 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script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/Slackware/release\", \"Host/Slackware/packages\");\n\n exit(0);\n}\n\ninclude(\"slackware.inc\");\n\nif (!get_kb_item(\"Host/local_checks_enabled\")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nif (!get_kb_item(\"Host/Slackware/release\")) audit(AUDIT_OS_NOT, \"Slackware\");\nif (!get_kb_item(\"Host/Slackware/packages\")) 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$\") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, \"Slackware\", cpu);\n\nvar flag = 0;\nvar constraints = [\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-generic', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'i586' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-huge', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'i586' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-modules', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'i586' },\n { 'fixed_version' : '5.15.63_smp', 'product' : 'kernel-generic-smp', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'i686' },\n { 'fixed_version' : '5.15.63_smp', 'product' : 'kernel-huge-smp', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'i686' },\n { 'fixed_version' : '5.15.63_smp', 'product' : 'kernel-modules-smp', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'i686' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-source', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'noarch' },\n { 'fixed_version' : '5.15.63_smp', 'product' : 'kernel-source', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'noarch' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-headers', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'x86' },\n { 'fixed_version' : '5.15.63_smp', 'product' : 'kernel-headers', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'x86' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-generic', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'x86_64' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-huge', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'x86_64' },\n { 'fixed_version' : '5.15.63', 'product' : 'kernel-modules', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1', 'arch' : 'x86_64' }\n];\n\nforeach constraint (constraints) {\n var pkg_arch = constraint['arch'];\n var arch = NULL;\n if (pkg_arch == \"x86_64\") {\n arch = pkg_arch;\n }\n if (slackware_check(osver:constraint['os_version'],\n arch:arch,\n pkgname:constraint['product'],\n pkgver:constraint['fixed_version'],\n pkgarch:pkg_arch,\n pkgnum:constraint['service_pack'])) flag++;\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : slackware_report_get()\n );\n exit(0);\n}\nelse audit(AUDIT_HOST_NOT, \"affected\");\n", "cvss": {"score": 0.0, "vector": "NONE"}}], "amazon": [{"lastseen": "2023-06-05T14:48:29", "description": "**Issue Overview:**\n\nThere are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33740)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33741)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33742)\n\nArm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\n \n**Affected Packages:** \n\n\nkernel\n\n \n**Issue Correction:** \nRun _yum update kernel_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n i686: \n \u00a0\u00a0\u00a0 perf-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.287-148.504.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-i686-4.14.287-148.504.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 kernel-4.14.287-148.504.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-x86_64-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 perf-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.287-148.504.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.287-148.504.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2022-2318](<https://access.redhat.com/security/cve/CVE-2022-2318>), [CVE-2022-26365](<https://access.redhat.com/security/cve/CVE-2022-26365>), [CVE-2022-33740](<https://access.redhat.com/security/cve/CVE-2022-33740>), [CVE-2022-33741](<https://access.redhat.com/security/cve/CVE-2022-33741>), [CVE-2022-33742](<https://access.redhat.com/security/cve/CVE-2022-33742>), [CVE-2022-33744](<https://access.redhat.com/security/cve/CVE-2022-33744>)\n\nMitre: [CVE-2022-2318](<https://vulners.com/cve/CVE-2022-2318>), [CVE-2022-26365](<https://vulners.com/cve/CVE-2022-26365>), [CVE-2022-33740](<https://vulners.com/cve/CVE-2022-33740>), [CVE-2022-33741](<https://vulners.com/cve/CVE-2022-33741>), [CVE-2022-33742](<https://vulners.com/cve/CVE-2022-33742>), [CVE-2022-33744](<https://vulners.com/cve/CVE-2022-33744>)\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2022-07-28T20:37:00", "type": "amazon", "title": "Important: kernel", "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-2022-2318", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-08-04T22:51:00", "id": "ALAS-2022-1624", "href": "https://alas.aws.amazon.com/ALAS-2022-1624.html", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-06-05T15:14:17", "description": "**Issue Overview:**\n\nThere are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33740)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33741)\n\nLinux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-33742)\n\nArm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages. (CVE-2022-33744)\n\n \n**Affected Packages:** \n\n\nkernel\n\n \n**Issue Correction:** \nRun _yum update kernel_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n aarch64: \n \u00a0\u00a0\u00a0 kernel-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-aarch64-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 perf-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 python-perf-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 python-perf-debuginfo-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.287-215.504.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.287-215.504.amzn2.aarch64 \n \n i686: \n \u00a0\u00a0\u00a0 kernel-headers-4.14.287-215.504.amzn2.i686 \n \n src: \n \u00a0\u00a0\u00a0 kernel-4.14.287-215.504.amzn2.src \n \n x86_64: \n \u00a0\u00a0\u00a0 kernel-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-x86_64-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 perf-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 python-perf-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 python-perf-debuginfo-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.287-215.504.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-livepatch-4.14.287-215.504-1.0-0.amzn2.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2022-2318](<https://access.redhat.com/security/cve/CVE-2022-2318>), [CVE-2022-26365](<https://access.redhat.com/security/cve/CVE-2022-26365>), [CVE-2022-33740](<https://access.redhat.com/security/cve/CVE-2022-33740>), [CVE-2022-33741](<https://access.redhat.com/security/cve/CVE-2022-33741>), [CVE-2022-33742](<https://access.redhat.com/security/cve/CVE-2022-33742>), [CVE-2022-33744](<https://access.redhat.com/security/cve/CVE-2022-33744>)\n\nMitre: [CVE-2022-2318](<https://vulners.com/cve/CVE-2022-2318>), [CVE-2022-26365](<https://vulners.com/cve/CVE-2022-26365>), [CVE-2022-33740](<https://vulners.com/cve/CVE-2022-33740>), [CVE-2022-33741](<https://vulners.com/cve/CVE-2022-33741>), [CVE-2022-33742](<https://vulners.com/cve/CVE-2022-33742>), [CVE-2022-33744](<https://vulners.com/cve/CVE-2022-33744>)\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2022-07-19T01:20:00", "type": "amazon", "title": "Important: kernel", "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-2022-2318", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-07-20T22:22:00", "id": "ALAS2-2022-1825", "href": "https://alas.aws.amazon.com/AL2/ALAS-2022-1825.html", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}], "mageia": [{"lastseen": "2023-06-05T15:16:10", "description": "This kernel update is based on upstream 5.15.55 and fixes at least the following security issues: There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges (CVE-2022-2318). Xen Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740, XSA-403). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742, XSA-403). Xen network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed (CVE-2022-33743, XSA-405). Xen Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These in consistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests memory pages (CVE-2022-33744, XSA-406). An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access) (CVE-2022-34918). Other fixes in this update: \\- ALSA: hda: Add fixup for Dell Latitidue E5430 \\- ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model \\- ALSA: hda/realtek: Enable the headset-mic on a Xiaomi laptop \\- ALSA: hda/realtek: Fix headset mic for Acer SF313-51 \\- ALSA: hda/realtek: Fix headset mic problem for a HP machine with alc221 \\- ALSA: hda/realtek: Fix headset mic problem for a HP machine with alc671 \\- ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 440/450 G9 and EliteBook 640/650 G9 \\- ARM: 9213/1: Print message about disabled Spectre workarounds only once \\- net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer (fixes crash) \\- xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue (fixes crash) \\- xfs: only run COW extent recovery when there are no live extents \\- xfs: don't include bnobt blocks when reserving free block pool \\- xfs: run callbacks before waking waiters in xlog_state_shutdown_callbacks \\- xfs: drop async cache flushes from CIL commits For other upstream fixes, see the referenced changelogs. \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": "2022-07-20T20:24:04", "type": "mageia", "title": "Updated kernel packages fix security vulnerabilities\n", "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-2022-2318", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34918"], "modified": "2022-07-20T20:24:02", "id": "MGASA-2022-0263", "href": "https://advisories.mageia.org/MGASA-2022-0263.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-06-05T15:16:10", "description": "This kernel-linus update is based on upstream 5.15.55 and fixes at least the following security issues: There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges (CVE-2022-2318). Xen Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740, XSA-403). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742, XSA-403). Xen network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed (CVE-2022-33743, XSA-405). Xen Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These in consistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests memory pages (CVE-2022-33744, XSA-406). An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access) (CVE-2022-34918). For other upstream fixes, see the referenced changelogs. \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": "2022-07-20T20:24:04", "type": "mageia", "title": "Updated kernel-linus packages fix security vulnerabilities\n", "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-2022-2318", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34918"], "modified": "2022-07-20T20:24:04", "id": "MGASA-2022-0264", "href": "https://advisories.mageia.org/MGASA-2022-0264.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "photon": [{"lastseen": "2022-09-30T20:51:21", "description": "Updates of ['postgresql10', 'postgresql', 'linux-aws', 'linux-secure', 'linux', 'linux-rt'] packages of Photon OS have been released.\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": "2022-08-26T00:00:00", "type": "photon", "title": "Critical Photon OS Security Update - PHSA-2022-0238", "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-2021-33656", "CVE-2022-1012", "CVE-2022-1789", "CVE-2022-1852", "CVE-2022-2078", "CVE-2022-2625", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34918"], "modified": "2022-08-26T00:00:00", "id": "PHSA-2022-0238", "href": "https://github.com/vmware/photon/wiki/Security-Update-4.0-238", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-06-05T15:31:36", "description": "Updates of ['linux-aws', 'postgresql', 'linux-rt', 'linux', 'linux-secure', 'postgresql10'] packages of Photon OS have been released.\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": "2022-08-26T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2022-4.0-0238", "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-2021-33656", "CVE-2022-1012", "CVE-2022-1508", "CVE-2022-1789", "CVE-2022-1852", "CVE-2022-2078", "CVE-2022-2327", "CVE-2022-2625", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34918"], "modified": "2022-08-26T00:00:00", "id": "PHSA-2022-4.0-0238", "href": "https://github.com/vmware/photon/wiki/Security-Update-4.0-238", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-06-05T15:46:24", "description": "Updates of ['linux-aws', 'linux-rt', 'linux', 'linux-secure', 'linux-esx'] packages of Photon OS have been released.\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": "2022-09-07T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2022-3.0-0446", "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-2021-33655", "CVE-2021-33656", "CVE-2021-4159", "CVE-2022-0812", "CVE-2022-1012", "CVE-2022-1462", "CVE-2022-1679", "CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-2318", "CVE-2022-2380", "CVE-2022-26365", "CVE-2022-26373", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744", "CVE-2022-36879", "CVE-2022-36946"], "modified": "2022-09-07T00:00:00", "id": "PHSA-2022-3.0-0446", "href": "https://github.com/vmware/photon/wiki/Security-Update-3.0-446", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "ubuntu": [{"lastseen": "2023-06-05T14:58:01", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * linux-azure \\- Linux kernel for Microsoft Azure Cloud systems\n\nIt was discovered that the SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-17T00:00:00", "type": "ubuntu", "title": "Linux kernel (Azure) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-17T00:00:00", "id": "USN-5684-1", "href": "https://ubuntu.com/security/notices/USN-5684-1", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:57:57", "description": "## Releases\n\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * linux-azure-4.15 \\- Linux kernel for Microsoft Azure Cloud systems\n\nIt was discovered that the SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-18T00:00:00", "type": "ubuntu", "title": "Linux kernel (Azure) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-18T00:00:00", "id": "USN-5687-1", "href": "https://ubuntu.com/security/notices/USN-5687-1", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:58:08", "description": "## Releases\n\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * linux-aws \\- Linux kernel for Amazon Web Services (AWS) systems\n * linux-gcp-4.15 \\- Linux kernel for Google Cloud Platform (GCP) systems\n\nIt was discovered that the SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-13T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-13T00:00:00", "id": "USN-5678-1", "href": "https://ubuntu.com/security/notices/USN-5678-1", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:58:18", "description": "## Releases\n\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * linux \\- Linux kernel\n * linux-dell300x \\- Linux kernel for Dell 300x platforms\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 SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-10T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-10T00:00:00", "id": "USN-5669-1", "href": "https://ubuntu.com/security/notices/USN-5669-1", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:58:18", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * linux-hwe \\- Linux hardware enablement (HWE) kernel\n * linux-oracle \\- Linux kernel for Oracle Cloud systems\n\nIt was discovered that the SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-10T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-10T00:00:00", "id": "USN-5669-2", "href": "https://ubuntu.com/security/notices/USN-5669-2", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:57:49", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n\nIt was discovered that the SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-21T00:00:00", "type": "ubuntu", "title": "Linux kernel (GCP) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-21T00:00:00", "id": "USN-5695-1", "href": "https://ubuntu.com/security/notices/USN-5695-1", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:58:07", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * linux-aws-hwe \\- Linux kernel for Amazon Web Services (AWS-HWE) systems\n\nIt was discovered that the SUNRPC RDMA protocol implementation in the Linux \nkernel did not properly calculate the header size of a RPC message payload. \nA local attacker could use this to expose sensitive information (kernel \nmemory). (CVE-2022-0812)\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, CVE-2022-32296)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\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": "2022-10-13T00:00:00", "type": "ubuntu", "title": "Linux kernel (HWE) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 6.4, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-0812", "CVE-2022-1012", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32296", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744"], "modified": "2022-10-13T00:00:00", "id": "USN-5679-1", "href": "https://ubuntu.com/security/notices/USN-5679-1", "cvss": {"score": 6.4, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-05T14:57:38", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-azure-fde \\- Linux kernel for Microsoft Azure CVM cloud systems\n\nIt was discovered that the BPF verifier in the Linux kernel did not \nproperly handle internal data structures. A local attacker could use this \nto expose sensitive information (kernel memory). (CVE-2021-4159)\n\nIt was discovered that an out-of-bounds write vulnerability existed in the \nVideo for Linux 2 (V4L2) implementation in the Linux kernel. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2022-20369)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nPawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan \nand Ariel Sabba discovered that some Intel processors with Enhanced \nIndirect Branch Restricted Speculation (eIBRS) did not properly handle RET \ninstructions after a VM exits. A local attacker could potentially use this \nto expose sensitive information. (CVE-2022-26373)\n\nEric Biggers discovered that a use-after-free vulnerability existed in the \nio_uring subsystem in the Linux kernel. A local attacker could possibly use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2022-3176)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the Netlink Transformation (XFRM) subsystem in the \nLinux kernel contained a reference counting error. A local attacker could \nuse this to cause a denial of service (system crash). (CVE-2022-36879)\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": "2022-10-27T00:00:00", "type": "ubuntu", "title": "Linux kernel (Azure CVM) 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-2021-4159", "CVE-2022-20369", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-26373", "CVE-2022-3176", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744", "CVE-2022-36879"], "modified": "2022-10-27T00:00:00", "id": "USN-5706-1", "href": "https://ubuntu.com/security/notices/USN-5706-1", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-06-05T14:58:08", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) 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 BPF verifier in the Linux kernel did not \nproperly handle internal data structures. A local attacker could use this \nto expose sensitive information (kernel memory). (CVE-2021-4159)\n\nIt was discovered that an out-of-bounds write vulnerability existed in the \nVideo for Linux 2 (V4L2) implementation in the Linux kernel. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2022-20369)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nPawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan \nand Ariel Sabba discovered that some Intel processors with Enhanced \nIndirect Branch Restricted Speculation (eIBRS) did not properly handle RET \ninstructions after a VM exits. A local attacker could potentially use this \nto expose sensitive information. (CVE-2022-26373)\n\nEric Biggers discovered that a use-after-free vulnerability existed in the \nio_uring subsystem in the Linux kernel. A local attacker could possibly use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2022-3176)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the Netlink Transformation (XFRM) subsystem in the \nLinux kernel contained a reference counting error. A local attacker could \nuse this to cause a denial of service (system crash). (CVE-2022-36879)\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": "2022-10-13T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "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-2021-4159", "CVE-2022-20369", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-26373", "CVE-2022-3176", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744", "CVE-2022-36879"], "modified": "2022-10-13T00:00:00", "id": "USN-5677-1", "href": "https://ubuntu.com/security/notices/USN-5677-1", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-06-05T14:58:06", "description": "## Releases\n\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * linux-aws-5.4 \\- Linux kernel for Amazon Web Services (AWS) systems\n\nIt was discovered that the BPF verifier in the Linux kernel did not \nproperly handle internal data structures. A local attacker could use this \nto expose sensitive information (kernel memory). (CVE-2021-4159)\n\nIt was discovered that an out-of-bounds write vulnerability existed in the \nVideo for Linux 2 (V4L2) implementation in the Linux kernel. A local \nattacker could use this to cause a denial of service (system crash) or \npossibly execute arbitrary code. (CVE-2022-20369)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nPawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan \nand Ariel Sabba discovered that some Intel processors with Enhanced \nIndirect Branch Restricted Speculation (eIBRS) did not properly handle RET \ninstructions after a VM exits. A local attacker could potentially use this \nto expose sensitive information. (CVE-2022-26373)\n\nEric Biggers discovered that a use-after-free vulnerability existed in the \nio_uring subsystem in the Linux kernel. A local attacker could possibly use \nthis to cause a denial of service (system crash) or possibly execute \narbitrary code. (CVE-2022-3176)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the Netlink Transformation (XFRM) subsystem in the \nLinux kernel contained a reference counting error. A local attacker could \nuse this to cause a denial of service (system crash). (CVE-2022-36879)\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": "2022-10-14T00:00:00", "type": "ubuntu", "title": "Linux kernel (AWS) 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-2021-4159", "CVE-2022-20369", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-26373", "CVE-2022-3176", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33744", "CVE-2022-36879"], "modified": "2022-10-14T00:00:00", "id": "USN-5682-1", "href": "https://ubuntu.com/security/notices/USN-5682-1", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-06-05T14:58:36", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-gke-5.15 \\- Linux kernel for Google Container Engine (GKE) systems\n\nIt was discovered that the framebuffer driver on the Linux kernel did not \nverify size limits when changing font or screen size, leading to an out-of- \nbounds write. A local attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2021-33655)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nJan Beulich discovered that the Xen network device frontend driver in the \nLinux kernel incorrectly handled socket buffers (skb) references when \ncommunicating with certain backends. A local attacker could use this to \ncause a denial of service (guest crash). (CVE-2022-33743)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the virtio RPMSG bus driver in the Linux kernel \ncontained a double-free vulnerability in certain error conditions. A local \nattacker could possibly use this to cause a denial of service (system \ncrash). (CVE-2022-34494, CVE-2022-34495)\n\nDomingo Dirutigliano and Nicola Guerrera discovered that the netfilter \nsubsystem in the Linux kernel did not properly handle rules that truncated \npackets below the packet header size. When such rules are in place, a \nremote attacker could possibly use this to cause a denial of service \n(system crash). (CVE-2022-36946)\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": "2022-09-30T00:00:00", "type": "ubuntu", "title": "Linux kernel (GKE) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-33655", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34494", "CVE-2022-34495", "CVE-2022-36946"], "modified": "2022-09-30T00:00:00", "id": "USN-5648-1", "href": "https://ubuntu.com/security/notices/USN-5648-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-06-05T14:58:40", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * linux-gcp-5.15 \\- Linux kernel for Google Cloud Platform (GCP) systems\n\nIt was discovered that the framebuffer driver on the Linux kernel did not \nverify size limits when changing font or screen size, leading to an out-of- \nbounds write. A local attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2021-33655)\n\nDuoming Zhou discovered that race conditions existed in the timer handling \nimplementation of the Linux kernel's Rose X.25 protocol layer, resulting in \nuse-after-free vulnerabilities. A local attacker could use this to cause a \ndenial of service (system crash). (CVE-2022-2318)\n\nRoger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux \nkernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-26365)\n\nRoger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the \nLinux kernel did not properly initialize memory pages to be used for shared \ncommunication with the backend. A local attacker could use this to expose \nsensitive information (guest kernel memory). (CVE-2022-33740)\n\nIt was discovered that the Xen paravirtualization frontend in the Linux \nkernel incorrectly shared unrelated data when communicating with certain \nbackends. A local attacker could use this to cause a denial of service \n(guest crash) or expose sensitive information (guest kernel memory). \n(CVE-2022-33741, CVE-2022-33742)\n\nJan Beulich discovered that the Xen network device frontend driver in the \nLinux kernel incorrectly handled socket buffers (skb) references when \ncommunicating with certain backends. A local attacker could use this to \ncause a denial of service (guest crash). (CVE-2022-33743)\n\nOleksandr Tyshchenko discovered that the Xen paravirtualization platform in \nthe Linux kernel on ARM platforms contained a race condition in certain \nsituations. An attacker in a guest VM could use this to cause a denial of \nservice in the host OS. (CVE-2022-33744)\n\nIt was discovered that the virtio RPMSG bus driver in the Linux kernel \ncontained a double-free vulnerability in certain error conditions. A local \nattacker could possibly use this to cause a denial of service (system \ncrash). (CVE-2022-34494, CVE-2022-34495)\n\nDomingo Dirutigliano and Nicola Guerrera discovered that the netfilter \nsubsystem in the Linux kernel did not properly handle rules that truncated \npackets below the packet header size. When such rules are in place, a \nremote attacker could possibly use this to cause a denial of service \n(system crash). (CVE-2022-36946)\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": "2022-09-27T00:00:00", "type": "ubuntu", "title": "Linux kernel (GCP) vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "base