{"id":"CVE-2021-20181","state":"PUBLISHED","title":"A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potenti","description":"A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.","publishedAt":"2021-05-13T15:24:15.000Z","updatedAt":"2024-08-03T17:30:07.767Z","severity":null,"assigner":"redhat","products":["n/a qemu"],"affected":[{"vendor":"n/a","product":"qemu","versions":[{"version":"up to, including 5.2.0","status":"affected"}]}],"references":["https://www.zerodayinitiative.com/advisories/ZDI-21-159/","https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html","https://bugzilla.redhat.com/show_bug.cgi?id=1927007","https://security.netapp.com/advisory/ntap-20210720-0009/","https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"],"weaknesses":["CWE-367"],"ingestedAt":"2026-10-29T19:47:55.610Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/20xxx/CVE-2021-20181.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-20181","state":"PUBLISHED","datePublished":"2021-05-13T15:24:15.000Z","dateUpdated":"2024-08-03T17:30:07.767Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2020-12-17T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability."}],"affected":[{"vendor":"n/a","product":"qemu","versions":[{"version":"up to, including 5.2.0","status":"affected"}]}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-159/","tags":["x_refsource_MISC"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html","name":"[debian-lts-announce] 20210218 [SECURITY] [DLA 2560-1] qemu security update","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1927007","tags":["x_refsource_MISC"]},{"url":"https://security.netapp.com/advisory/ntap-20210720-0009/","tags":["x_refsource_CONFIRM"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html","name":"[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update","tags":["mailing-list","x_refsource_MLIST"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-367","description":"CWE-367->CWE-416","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","dateUpdated":"2022-09-05T05:06:09.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-159/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html","name":"[debian-lts-announce] 20210218 [SECURITY] [DLA 2560-1] qemu security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1927007","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20210720-0009/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html","name":"[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:30:07.767Z"}}]}}}