ghsa-349h-phx6-ghfj
Vulnerability from github
Published
2022-05-24 17:43
Modified
2022-08-16 00:00
Severity ?
Details
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.
{ "affected": [], "aliases": [ "CVE-2021-20263" ], "database_specific": { "cwe_ids": [ "CWE-281" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-03-09T18:15:00Z", "severity": "LOW" }, "details": "A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new \u0027xattrmap\u0027 option may cause the \u0027security.capability\u0027 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.", "id": "GHSA-349h-phx6-ghfj", "modified": "2022-08-16T00:00:44Z", "published": "2022-05-24T17:43:53Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20263" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1933668" }, { "type": "WEB", "url": "https://security.gentoo.org/glsa/202208-27" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20210507-0002" }, { "type": "WEB", "url": "https://www.openwall.com/lists/oss-security/2021/03/08/1" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "type": "CVSS_V3" } ] }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.