Not rated
CVE-2021-20263 A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| QEMU | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- www.openwall.com www.openwall.com
- security.netapp.com security.netapp.com
- GLSA-202208-27 security.gentoo.org
Timeline
- Published
- Last modified
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