CVE-2021-20265
linuxVulnerabilityCVSS 5.5Patched
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 : 5.5 MEDIUM · CVSS 2.0 : 4.9 MEDIUM
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 | - | 4.4.4-1 | fixed |
| Debian:12 | linux | - | 4.4.4-1 | fixed |
| Debian:13 | linux | - | 4.4.4-1 | fixed |
| Debian:14 | linux | - | 4.4.4-1 | fixed |
| Red Hat:enterprise_linux:7::client | kernel | - | 0:3.10.0-1160.21.1.el7 | fixed |
| Red Hat:enterprise_linux:7::server | kernel | - | 0:3.10.0-1160.21.1.el7 | fixed |
| Red Hat:enterprise_linux:7::workstation | kernel | - | 0:3.10.0-1160.21.1.el7 | fixed |
| Red Hat:rhel_els:6 | kernel | - | 0:2.6.32-754.39.1.el6 | fixed |