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). 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).
{"osv": [{"lastseen": "2022-10-29T06:46:53", "description": "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). 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).", "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": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-26365", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:51", "id": "OSV:CVE-2022-26365", "href": "https://osv.dev/vulnerability/CVE-2022-26365", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-10-29T06:46:56", "description": "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). 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).", "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": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-33742", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:53", "id": "OSV:CVE-2022-33742", "href": "https://osv.dev/vulnerability/CVE-2022-33742", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-10-29T06:46:53", "description": "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). 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).", "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": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-33741", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:52", "id": "OSV:CVE-2022-33741", "href": "https://osv.dev/vulnerability/CVE-2022-33741", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-10-29T06:46:53", "description": "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). 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).", "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": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-33740", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:51", "id": "OSV:CVE-2022-33740", "href": "https://osv.dev/vulnerability/CVE-2022-33740", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-08-10T07:07:15", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that may\nlead to privilege escalation, denial of service or information leaks:\n\n\n* [CVE-2021-33655](https://security-tracker.debian.org/tracker/CVE-2021-33655)\nA user with access to a framebuffer console driver could cause a\n memory out-of-bounds write via the FBIOPUT\\_VSCREENINFO ioctl.\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-2022-26365](https://security-tracker.debian.org/tracker/CVE-2022-26365),\n [CVE-2022-33740](https://security-tracker.debian.org/tracker/CVE-2022-33740),\n [CVE-2022-33741](https://security-tracker.debian.org/tracker/CVE-2022-33741),\n [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 the\n backend, which may result in information disclosure. 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": "2023-06-05T18:14:45", "description": "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). 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).", "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": "2022-07-05T13:15:00", "type": "debiancve", "title": "CVE-2022-26365", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-07-05T13:15:00", "id": "DEBIANCVE:CVE-2022-26365", "href": "https://security-tracker.debian.org/tracker/CVE-2022-26365", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2023-06-03T14:41:28", "description": "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). 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For more details, see:\n https://software.intel.com/security-software-guidance/deep-dives/deep-dive-indirect-branch-restricted- speculation Similar situations may exist with other mitigations for other kinds of speculative execution attacks. The situation is quite likely to be similar for speculative execution attacks which have yet to be discovered, disclosed, or mitigated. (CVE-2021-28689)\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). 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(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 - 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 Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2022-07-27T00:00:00", "type": "nessus", "title": "Debian DSA-5191-1 : linux - security update", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2021-33655", "CVE-2022-2318", "CVE-2022-26365", "CVE-2022-32250", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742", "CVE-2022-33743", "CVE-2022-33744", "CVE-2022-34918"], "modified": "2023-01-13T00:00:00", "cpe": ["p-cpe:/a:debian:debian_linux:affs-modules-5.10.0-13-4kc-malta-di", "p-cpe:/a:debian:debian_linux:affs-modules-5.10.0-13-5kc-malta-di", "p-cpe:/a:debian:debian_linux:affs-modules-5.10.0-13-loongson-3-di", "p-cpe:/a:debian:debian_linux:affs-modules-5.10.0-13-octeon-di", "p-cpe:/a:debian:debian_linux:affs-modules-5.10.0-16-4kc-malta-di", "p-cpe:/a:debian:debian_linux:affs-modules-5.10.0-16-5kc-malta-di", 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The text\n# itself is copyright (C) Software in the Public Interest, Inc.\n#\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(163480);\n script_version(\"1.5\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2023/01/13\");\n\n script_cve_id(\n \"CVE-2021-33655\",\n \"CVE-2022-2318\",\n \"CVE-2022-26365\",\n \"CVE-2022-33740\",\n \"CVE-2022-33741\",\n \"CVE-2022-33742\",\n \"CVE-2022-33743\",\n \"CVE-2022-33744\",\n \"CVE-2022-34918\"\n );\n\n script_name(english:\"Debian DSA-5191-1 : linux - security update\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Debian host is missing one or more security-related updates.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the\ndsa-5191 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 - 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 - 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 - An issue was discovered in the Linux kernel through 5.18.9. 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This affects certs/blacklist.c and certs/system_keyring.c.\n (CVE-2020-26541)\n\n - An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system. (CVE-2021-4157)\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 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 - 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 - 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 unrelate
CVE-2022-33742
