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Skip sync GC for such elements otherwise commit path might walk\nover an already released object. Once transaction is finished, async GC\nwill collect such expired element."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T14:46:35.696Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52433", "state": "PUBLISHED", "dateUpdated": "2024-11-06T21:23:39.384Z", "dateReserved": "2024-02-20T12:30:33.290Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-20T12:52:56.753Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: skip sync GC for new elements in this transaction\n\nNew elements in this transaction might expired before such transaction\nends. Skip sync GC for such elements otherwise commit path might walk\nover an already released object. Once transaction is finished, async GC\nwill collect such expired element."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nft_set_rbtree: omitir sincronizaci\u00f3n GC para nuevos elementos en esta transacci\u00f3n los nuevos elementos en esta transacci\u00f3n pueden caducar antes de que finalice dicha transacci\u00f3n. Omita la sincronizaci\u00f3n del GC para dichos elementos; de lo contrario, la ruta de confirmaci\u00f3n podr\u00eda pasar por encima de un objeto ya liberado. Una vez finalizada la transacci\u00f3n, async GC recopilar\u00e1 dicho elemento caducado."}], "id": "CVE-2023-52433", "lastModified": "2024-11-21T08:39:44.963", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-02-20T13:15:08.140", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/03caf75da1059f0460666c826e9f50e13dfd0017"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2ee52ae94baabf7ee09cf2a8d854b990dac5d0e4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a8c544158f68f656d1734eb5ba00c4f817b76b1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9af7dfb3c9d7985172a240f85e684c5cd33e29ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9db9feb841f7449772f9393c16b9ef4536d8c127"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c323ed65f66e5387ee0a73452118d49f1dae81b8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e3213ff99a355cda811b41e8dbb3472d13167a3a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/03caf75da1059f0460666c826e9f50e13dfd0017"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/2ee52ae94baabf7ee09cf2a8d854b990dac5d0e4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/9a8c544158f68f656d1734eb5ba00c4f817b76b1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/9af7dfb3c9d7985172a240f85e684c5cd33e29ce"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/9db9feb841f7449772f9393c16b9ef4536d8c127"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/c323ed65f66e5387ee0a73452118d49f1dae81b8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/e3213ff99a355cda811b41e8dbb3472d13167a3a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20240828-0003/"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-273"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: nf_tables: nft_set_rbtree skip sync GC for new elements in this transaction", "id": "2265184", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2265184"}, "csaw": false, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: nft_set_rbtree: skip sync GC for new elements in this transaction\nNew elements in this transaction might expired before such transaction\nends. Skip sync GC for such elements otherwise commit path might walk\nover an already released object. Once transaction is finished, async GC\nwill collect such expired element.", "A flaw was found in the Netfilter subsystem in the Linux kernel. This issue occurs in the nft_set_rbtree, where new elements in this transaction might expire before the transaction ends. Skip sync GC for such elements, otherwise a commit path might walk over an already released object. Once the transaction is finished, async GC will collect expired elements."], "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 functionality is needed to be enabled. The first mitigation (blacklisting nf_tables) is still viable for containerized deployments, providing the environment is not using netfilter."}, "name": "CVE-2023-52433", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52433\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52433\nhttps://lore.kernel.org/linux-cve-announce/2024022058-outsell-equator-e1c5@gregkh/T/#u"], "statement": "This flaw was found to be a duplicate of CVE-2023-4244. Please see https://access.redhat.com/security/cve/CVE-2023-4244 for information about affected products and security errata.", "threat_severity": "Moderate", "upstream_fix": "kernel 6.6-rc1"}