CVE-2021-20263
Vulnerability from cvelistv5
Published
2021-03-09 17:17
Modified
2024-08-03 17:37
Severity ?
EPSS score ?
0.04%
(0.17783)
Summary
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.
References
▼ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1933668 | Issue Tracking, Patch, Third Party Advisory | |
secalert@redhat.com | https://security.gentoo.org/glsa/202208-27 | Third Party Advisory | |
secalert@redhat.com | https://security.netapp.com/advisory/ntap-20210507-0002/ | Third Party Advisory | |
secalert@redhat.com | https://www.openwall.com/lists/oss-security/2021/03/08/1 | Mailing List, Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1933668 | Issue Tracking, Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202208-27 | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://security.netapp.com/advisory/ntap-20210507-0002/ | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.openwall.com/lists/oss-security/2021/03/08/1 | Mailing List, Patch, Third Party Advisory |
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Sightings
Author | Source | Type | Date |
---|
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.