CVE-2021-3490
linux-ltsVulnerabilityCVSS 7.8PatchedPoC
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 : 7.8 HIGH · CVSS 2.0 : 7.2 HIGH
Attack vectorLocal
Attack complexityHigh
Privileges requiredLow
User interactionNone
ScopeChanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:L/AC:H/PR:L/UI:N/S:C/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 |
|---|---|---|---|---|
| Arch | linux-lts | 5.10.36-2 | 5.10.37-1 | fixed |
| Arch | linux-zen | 5.12.3.zen2-1 | 5.12.4.zen1-1 | fixed |
| Arch | linux | 5.12.3.arch2-1 | 5.12.4.arch1-1 | fixed |
| Arch | linux-hardened | 5.11.20.hardened1-2 | 5.11.21.hardened1-1 | fixed |
| Debian:11 | linux | - | 5.10.38-1 | fixed |
| Debian:12 | linux | - | 5.10.38-1 | fixed |
| Debian:13 | linux | - | 5.10.38-1 | fixed |
| Debian:14 | linux | - | 5.10.38-1 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP3 | kernel-default-base | - | 5.3.18-59.5.2.18.2.2 | fixed |
| openSUSE:Leap 15.3 | kernel-default | - | 5.3.18-59.5.2 | fixed |
| openSUSE:Leap 15.3 | kernel-default-base | - | 5.3.18-59.5.2.18.2.2 | fixed |