{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T23:35:48.262","vulnerabilities":[{"cve":{"id":"CVE-2021-20263","sourceIdentifier":"secalert@redhat.com","published":"2021-03-09T18:15:15.593","lastModified":"2024-11-21T05:46:14.223","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest."},{"lang":"es","value":"Se encontró un fallo en el demonio del sistema de archivos compartidos virtio-fs (virtiofsd) de QEMU. La nueva opción \"xattrmap\" puede causar que el xattr \"security.capability\" en el invitado no caiga en la escritura del archivo, potencialmente conllevando a un ejecutable privilegiado modificado en el invitado. En raras ocasiones, un usuario malicioso podría usar este fallo para elevar sus privilegios dentro del invitado"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":3.3,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":1.4}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:P/A:N","baseScore":2.1,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-281"}]},{"source":"nvd@nist.gov","type":"Secondary","description":[{"lang":"en","value":"CWE-281"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0.0","versionEndExcluding":"5.2.50","matchCriteriaId":"58E0AF3A-FB63-438D-892E-960107BAFEC7"}]}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1933668","source":"secalert@redhat.com","tags":["Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/202208-27","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210507-0002/","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2021/03/08/1","source":"secalert@redhat.com","tags":["Mailing List","Patch","Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1933668","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/202208-27","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210507-0002/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2021/03/08/1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Patch","Third Party Advisory"]}]}}]}