CVE-2021-3609
linux-zenVulnerabilityCVSS 7.0PatchedPoC
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 : 7.0 HIGH · CVSS 2.0 : 6.9 MEDIUM
Attack vectorLocal
Attack complexityHigh
Privileges requiredLow
User interactionNone
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:L/AC:H/PR:L/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 |
|---|---|---|---|---|
| Arch | linux-zen | 5.13.1.zen1-1 | 5.13.4.zen1-1 | fixed |
| Arch | linux | 5.13.1.arch1-1 | 5.13.4.arch1-1 | fixed |
| Arch | linux-hardened | 5.12.18.hardened1-1 | 5.12.19.hardened1-1 | fixed |
| Arch | linux-lts | 5.10.51-1 | 5.10.52-1 | fixed |
| Debian:11 | linux | - | 5.10.46-1 | fixed |
| Debian:12 | linux | - | 5.10.46-1 | fixed |
| Debian:13 | linux | - | 5.10.46-1 | fixed |
| Debian:14 | linux | - | 5.10.46-1 | fixed |
| Ubuntu:Pro:18.04:LTS | linux | - | 4.15.0-147.151 | fixed |
| Ubuntu:Pro:20.04:LTS | linux | - | 5.4.0-77.86 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP2 | kernel-default-base | - | 5.3.18-24.75.3.9.34.3 | fixed |
| SUSE:Linux Enterprise Micro 5.0 | kernel-default-base | - | 5.3.18-24.75.3.9.34.3 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP3 | kernel-default-base | - | 5.3.18-59.19.1.18.10.1 | fixed |
| openSUSE:Leap 15.2 | kernel-default | - | 5.3.18-lp152.84.1 | fixed |
| openSUSE:Leap 15.3 | kernel-default | - | 4.12.14-197.99.1 | fixed |
| openSUSE:Leap 15.3 | kernel-default | - | 5.3.18-59.19.1 | fixed |
| openSUSE:Leap 15.2 | kernel-default-base | - | 5.3.18-lp152.84.1.lp152.8.38.1 | fixed |
| openSUSE:Leap 15.3 | kernel-default-base | - | 5.3.18-59.19.1.18.10.1 | fixed |
| Red Hat:enterprise_linux:8::baseos | kernel | - | 0:4.18.0-305.12.1.el8_4 | fixed |
| Red Hat:rhel_eus:8.2::baseos | kernel | - | 0:4.18.0-193.64.1.el8_2 | fixed |
| Red Hat:rhel_eus:8.1::baseos | kernel | - | 0:4.18.0-147.54.2.el8_1 | fixed |