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141 lines
4.1 KiB
JSON
141 lines
4.1 KiB
JSON
{
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"id": "CVE-2021-20263",
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"sourceIdentifier": "secalert@redhat.com",
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"published": "2021-03-09T18:15:15.593",
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"lastModified": "2022-09-30T13:29:37.727",
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"vulnStatus": "Analyzed",
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"descriptions": [
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{
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"lang": "en",
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"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."
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},
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{
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"lang": "es",
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"value": "Se encontr\u00f3 un fallo en el demonio del sistema de archivos compartidos virtio-fs (virtiofsd) de QEMU. La nueva opci\u00f3n \"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 podr\u00eda usar este fallo para elevar sus privilegios dentro del invitado"
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "LOW",
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"availabilityImpact": "NONE",
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"baseScore": 3.3,
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"baseSeverity": "LOW"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 1.4
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}
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],
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"cvssMetricV2": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "2.0",
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"vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
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"accessVector": "LOCAL",
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"accessComplexity": "LOW",
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"authentication": "NONE",
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"confidentialityImpact": "NONE",
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"integrityImpact": "PARTIAL",
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"availabilityImpact": "NONE",
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"baseScore": 2.1
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},
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"baseSeverity": "LOW",
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"exploitabilityScore": 3.9,
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"impactScore": 2.9,
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"acInsufInfo": false,
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"obtainAllPrivilege": false,
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"obtainUserPrivilege": false,
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"obtainOtherPrivilege": false,
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"userInteractionRequired": false
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}
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]
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},
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"weaknesses": [
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{
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"source": "secalert@redhat.com",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-281"
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}
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]
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},
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{
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"source": "nvd@nist.gov",
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"type": "Secondary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-281"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.0.0",
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"versionEndExcluding": "5.2.50",
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"matchCriteriaId": "58E0AF3A-FB63-438D-892E-960107BAFEC7"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1933668",
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"source": "secalert@redhat.com",
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"tags": [
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"Issue Tracking",
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"Patch",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://security.gentoo.org/glsa/202208-27",
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"source": "secalert@redhat.com",
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"tags": [
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"Third Party Advisory"
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]
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},
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{
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"url": "https://security.netapp.com/advisory/ntap-20210507-0002/",
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"source": "secalert@redhat.com",
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"tags": [
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"Third Party Advisory"
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]
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},
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{
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"url": "https://www.openwall.com/lists/oss-security/2021/03/08/1",
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"source": "secalert@redhat.com",
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"tags": [
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"Mailing List",
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"Patch",
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"Third Party Advisory"
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]
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}
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]
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} |