CVE-2021-20263
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-20263
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20263.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-20263
- Downstream
- Related
- Published
- 2021-03-09T18:15:15Z
- Modified
- 2024-11-21T05:46:14Z
- Severity
-
- 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- [none]
- 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.
- References
Affected packages
Debian:11 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source
Debian:12 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source
Debian:13 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source