CVE-2021-20261
linuxVulnerabilityCVSS 6.4Patched
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 6.4 MEDIUM · CVSS 2.0 : 4.4 MEDIUM
Attack vectorLocal
Attack complexityHigh
Privileges requiredHigh
User interactionNone
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Debian:11 | linux | - | 4.5.1-1 | fixed |
| Debian:12 | linux | - | 4.5.1-1 | fixed |
| Debian:13 | linux | - | 4.5.1-1 | fixed |
| Debian:14 | linux | - | 4.5.1-1 | fixed |