{"affected":[{"affectedData":[{"defaultStatus":"unaffected","packageName":"kernel","product":"Linux Kernel","repo":"https://git.kernel.org","vendor":"Linux","versions":[{"lessThanOrEqual":"5.17","status":"affected","version":"5.7","versionType":"custom"}]}],"source":"cve-coordination@google.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"3F0679CB-0039-43FB-94D1-171403E75419","versionEndExcluding":"5.17","versionStartIncluding":"5.7","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","matchCriteriaId":"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation.\n\nThe io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered.\n\nWe recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8."}],"id":"CVE-2023-1872","lastModified":"2026-06-17T05:28:56.287","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":"cve-coordination@google.com","type":"Secondary"},{"cvssData":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.0,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":1.0,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2023-04-12T16:15:17.027","references":[{"source":"cve-coordination@google.com","tags":["Third Party Advisory","VDB Entry"],"url":"http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"},{"source":"cve-coordination@google.com","tags":["Mailing List","Product"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be"},{"source":"cve-coordination@google.com","tags":["Mailing List","Patch"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8"},{"source":"cve-coordination@google.com","tags":["Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"},{"source":"cve-coordination@google.com","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20230601-0002/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"url":"http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Product"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Patch"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20230601-0002/"}],"sourceIdentifier":"cve-coordination@google.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-416"}],"source":"cve-coordination@google.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-416"}],"source":"nvd@nist.gov","type":"Primary"}]}