VDB
CVE-2021-20263
CVE-2021-20263
PUBLISHED
Reported by redhat · Published March 9, 2021
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
| Vendor | Product | Versions |
|---|---|---|
| n/a | QEMU | qemu 5.2.50 |
| n/a | QEMU | qemu 5.2.50 |
Timeline
- Mar 9, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 22, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 25, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- x_refsource_MISC
- x_refsource_MISC
- x_refsource_CONFIRM
- GLSA-202208-27 vendor-advisoryx_refsource_GENTOO