VDB
DEBIAN-CVE-2021-20263
DEBIAN-CVE-2021-20263
PUBLISHED
CVSS 3.299999952316284 LOW
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.
Risk Scores
CVSS 3.1
3.299999952316284
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | qemu | 0, 0, 0 |
| Debian:13 | qemu | 0, 0, 0 |
| Debian:12 | qemu | 0, 0, 0 |
| Debian:14 | qemu | 0, 0, 0 |
Timeline
- Mar 9, 2021 CVE Published
- Apr 28, 2026 CVE Updated