{"id":"CVE-2023-4015","state":"PUBLISHED","title":"Use-after-free in Linux kernel's netfilter: nf_tables component","description":"A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.\n\nOn an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used.\n\nWe recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2.","publishedAt":"2023-09-06T13:52:44.724Z","updatedAt":"2026-10-14T21:23:00.520Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Google"},"assigner":"Google","products":["Linux Kernel"],"affected":[{"vendor":"Linux","product":"Kernel","packageName":"kernel","defaultStatus":"unaffected","versions":[{"version":"6.4","status":"affected","lessThan":"6.5","versionType":"custom"}],"repo":"https://git.kernel.org"}],"references":["https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2","https://kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2","https://www.debian.org/security/2023/dsa-5492","https://cert-portal.siemens.com/productcert/html/ssa-831302.html","https://cert-portal.siemens.com/productcert/html/ssa-794697.html"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/4xxx/CVE-2023-4015.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-4015","state":"PUBLISHED","datePublished":"2023-09-06T13:52:44.724Z","dateUpdated":"2026-10-14T21:23:00.520Z","assignerShortName":"Google","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateReserved":"2023-07-31T10:37:30.332Z"},"containers":{"cna":{"title":"Use-after-free in Linux kernel's netfilter: nf_tables component","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\nOn an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used.\n\nWe recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2."}],"affected":[{"vendor":"Linux","product":"Kernel","packageName":"kernel","defaultStatus":"unaffected","versions":[{"version":"6.4","status":"affected","lessThan":"6.5","versionType":"custom"}],"repo":"https://git.kernel.org"}],"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2","tags":["patch"]},{"url":"https://kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2"},{"url":"https://www.debian.org/security/2023/dsa-5492"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416 Use After Free","type":"CWE"}]}],"providerMetadata":{"shortName":"Google","orgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateUpdated":"2023-09-10T11:06:38.175Z"},"datePublic":"2023-07-26T14:48:49.000Z","impacts":[{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"CAPEC-233 Privilege Escalation"}]}],"credits":[{"lang":"en","value":"Kevin Rich","user":"00000000-0000-4000-9000-000000000000","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2","tags":["patch","x_transferred"]},{"url":"https://kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2","tags":["x_transferred"]},{"url":"https://www.debian.org/security/2023/dsa-5492","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T07:17:11.558Z"}},{"affected":[{"vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"V1.1","versionType":"custom"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-831302.html"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html"}],"providerMetadata":{"shortName":"siemens-SADP","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","dateUpdated":"2026-10-14T21:23:00.520Z"},"x_adpType":"supplier"}]}}}