{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-4244", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2023-08-08T15:36:07.559Z", "datePublished": "2023-09-06T13:53:24.873Z", "dateUpdated": "2026-07-28T14:43:13.218Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2026-07-28T14:43:13.218Z" }, "title": "Use-after-free in Linux kernel's netfilter: nf_tables component", "datePublic": "2023-08-10T17:47:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-416", "description": "CWE-416 Use After Free", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-233", "descriptions": [ { "lang": "en", "value": "CAPEC-233 Privilege Escalation" } ] } ], "affected": [ { "vendor": "Linux", "product": "Kernel", "packageName": "kernel", "repo": "https://git.kernel.org", "versions": [ { "status": "affected", "version": "0.0", "lessThan": "4.19.316", "versionType": "custom" }, { "status": "affected", "version": "4.20", "lessThan": "5.4.262", "versionType": "custom" }, { "status": "affected", "version": "5.5", "lessThan": "5.10.198", "versionType": "custom" }, { "status": "affected", "version": "5.11", "lessThan": "5.15.134", "versionType": "custom" }, { "status": "affected", "version": "5.16", "lessThan": "6.1.56", "versionType": "custom" }, { "status": "affected", "version": "6.2", "lessThan": "6.4.11", "versionType": "custom" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.\n\n\n\nDue to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.\n\n\n\nWe recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.
We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.
" } ] } ], "references": [ { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8", "tags": [ "patch" ] }, { "url": "https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8" }, { "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H" } } ], "credits": [ { "lang": "en", "value": "Bien Pham from Team Orca of Sea Security Team", "user": "00000000-0000-4000-9000-000000000000", "type": "finder" } ], "source": { "discovery": "EXTERNAL" }, "x_generator": { "engine": "Vulnogram 0.1.0-dev" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:24:03.697Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8", "tags": [ "patch", "x_transferred" ] }, { "url": "https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html", "tags": [ "x_transferred" ] } ] } ] } }