{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-1872","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","state":"PUBLISHED","assignerShortName":"Google","dateReserved":"2023-04-05T13:26:00.875Z","datePublished":"2023-04-12T15:40:42.386Z","dateUpdated":"2025-02-13T16:39:40.499Z"},"containers":{"cna":{"affected":[{"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"}]}],"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Bing-Jhong Billy Jheng of Starlabs"}],"datePublic":"2023-03-03T10:45:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation.</p><p>The io_file_get_fixed function lacks the presence of ctx-&gt;uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered.</p><p>We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.</p>"}],"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."}],"impacts":[{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"CAPEC-233 Privilege Escalation"}]}],"metrics":[{"cvssV3_1":{"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"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","description":"CWE-416 Use After Free","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"14ed7db2-1595-443d-9d34-6215bf890778","shortName":"Google","dateUpdated":"2023-06-22T14:06:34.098Z"},"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8"},{"url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"},{"url":"https://security.netapp.com/advisory/ntap-20230601-0002/"},{"url":"http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"}],"source":{"discovery":"EXTERNAL"},"title":"Use-after-free in Linux kernel's io_uring subsystem","x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T06:05:26.723Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be","tags":["x_transferred"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20230601-0002/","tags":["x_transferred"]},{"url":"http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html","tags":["x_transferred"]}]}]}}