{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-1085", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2024-01-30T20:04:08.623Z", "datePublished": "2024-01-31T12:14:32.429Z", "dateUpdated": "2024-08-01T18:26:30.459Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2024-01-31T12:14:32.429Z"}, "title": "Use-after-free in Linux kernel's netfilter: nf_tables component", "datePublic": "2024-01-17T11:02:49+00:00", "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": "5.13", "lessThan": "6.8", "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\nThe nft_setelem_catchall_deactivate() function checks whether the catch-all set element is active in the current generation instead of the next generation before freeing it, but only flags it inactive in the next generation, making it possible to free the element multiple times, leading to a double free vulnerability.\n\nWe recommend upgrading past commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7.\n\n"}], "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7", "tags": ["patch"]}, {"url": "https://kernel.dance/b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7"}], "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": "Lonial Con", "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": "2024-08-01T18:26:30.459Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7", "tags": ["patch", "x_transferred"]}, {"url": "https://kernel.dance/b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7", "tags": ["x_transferred"]}]}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "204B38A4-3EB9-47E0-9F1D-0F4A2A97B347", "versionEndExcluding": "5.15.148", "versionStartIncluding": "5.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "070D0ED3-90D0-4F95-B1FF-57D7F46F332D", "versionEndExcluding": "6.1.75", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5C6B50A6-3D8B-4CE2-BDCC-A098609CBA14", "versionEndExcluding": "6.6.14", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7229C448-E0C9-488B-8939-36BA5254065E", "versionEndExcluding": "6.7.2", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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\nThe nft_setelem_catchall_deactivate() function checks whether the catch-all set element is active in the current generation instead of the next generation before freeing it, but only flags it inactive in the next generation, making it possible to free the element multiple times, leading to a double free vulnerability.\n\nWe recommend upgrading past commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7.\n\n"}, {"lang": "es", "value": "Una vulnerabilidad de use after free en el componente netfilter: nf_tables del kernel de Linux puede explotarse para lograr una escalada de privilegios local. La funci\u00f3n nft_setelem_catchall_deactivate() comprueba si el elemento del conjunto general est\u00e1 activo en la generaci\u00f3n actual en lugar de en la siguiente generaci\u00f3n antes de liberarlo, pero solo lo marca como inactivo en la siguiente generaci\u00f3n, lo que permite liberar el elemento varias veces, lo que lleva a una vulnerabilidad double free. Recomendamos actualizar la confirmaci\u00f3n anterior b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7."}], "id": "CVE-2024-1085", "lastModified": "2024-02-05T20:41:40.513", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "cve-coordination@google.com", "type": "Secondary"}]}, "published": "2024-01-31T13:15:10.630", "references": [{"source": "cve-coordination@google.com", "tags": ["Patch"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7"}, {"source": "cve-coordination@google.com", "tags": ["Patch"], "url": "https://kernel.dance/b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "cve-coordination@google.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:2394", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.13.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2394", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.13.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:1018", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.55.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-02-28T00:00:00Z"}, {"advisory": "RHSA-2024:1019", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.55.1.rt14.340.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-02-28T00:00:00Z"}], "bugzilla": {"description": "kernel: nf_tables: use-after-free vulnerability in the nft_setelem_catchall_deactivate() function", "id": "2262127", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2262127"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.6", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.\nThe nft_setelem_catchall_deactivate() function checks whether the catch-all set element is active in the current generation instead of the next generation before freeing it, but only flags it inactive in the next generation, making it possible to free the element multiple times, leading to a double free vulnerability.\nWe recommend upgrading past commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7.", "A double-free flaw was found in how the Linux kernel's NetFilter system marks whether a catch-all element is enabled. A local user could use this flaw to crash the system."], "mitigation": {"lang": "en:us", "value": "1. This flaw can be mitigated by preventing the affected netfilter (nf_tables) kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278.\n2. If the module cannot be disabled, on non-containerized deployments of Red Hat Enterprise Linux, the mitigation is to disable user namespaces:\n```\n# echo \"user.max_user_namespaces=0\" > /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf\n```\nOn containerized deployments, such as Red Hat OpenShift Container Platform, do not use the second mitigation (disabling user namespaces) as the user namespaces are required for container functionality. The first mitigation (blacklisting nf_tables) is still viable for containerized deployments, providing the environment is not using netfilter."}, "name": "CVE-2024-1085", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-01-31T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-1085\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-1085\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7\nhttps://kernel.dance/b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7"], "statement": "This flaw is rated as a having Moderate impact, because it can only be exploited by a local user with access to netfilter.", "threat_severity": "Moderate", "upstream_fix": "kernel 6.8-rc1"}