CVE-2021-4442
linuxVulnerabilityCVSS 5.5PatchedPoC
A public proof-of-concept or exploit code is available, raising the risk of active exploitation. 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
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 | - | 5.10.24-1 | fixed |
| Debian:12 | linux | - | 5.10.24-1 | fixed |
| Debian:13 | linux | - | 5.10.24-1 | fixed |
| Debian:14 | linux | - | 5.10.24-1 | fixed |
| Red Hat:enterprise_linux:8::baseos | kernel | - | 0:4.18.0-348.el8 | fixed |