CVE-2021-4157
linuxVulnerabilityCVSS 8.0Patched
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 : 8.0 HIGH · CVSS 2.0 : 7.4 HIGH
Attack vectorAdjacent network
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:A/AC:L/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 |
|---|---|---|---|---|
| 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 | - | 5.3.18-150300.59.87.1.150300.18.50.2 | fixed |
| SUSE:Linux Enterprise Micro 5.1 | kernel-default-base | - | 5.3.18-150300.59.87.1.150300.18.50.2 | fixed |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default-base | - | 5.3.18-150300.59.87.1.150300.18.50.2 | fixed |
| openSUSE:Leap 15.3 | kernel-default-base | - | 5.3.18-150300.59.87.1.150300.18.50.2 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Linux Enterprise Server 15 SP2-BCL | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Manager Proxy 4.1 | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Manager Retail Branch Server 4.1 | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Manager Server 4.1 | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Enterprise Storage 7 | kernel-default-base | - | 5.3.18-150200.24.126.1.150200.9.59.2 | fixed |
| SUSE:Linux Enterprise Live Patching 15 SP1 | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise High Availability Extension 15 SP1 | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP1-BCL | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP1-LTSS | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Enterprise Storage 6 | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| openSUSE:Leap 15.3 | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| openSUSE:Leap 15.4 | kernel-default | - | 4.12.14-150100.197.117.1 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP3 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| SUSE:Linux Enterprise Module for Legacy 15 SP3 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| SUSE:Linux Enterprise High Availability Extension 15 SP3 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| SUSE:Linux Enterprise Workstation Extension 15 SP3 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| SUSE:Linux Enterprise Micro 5.1 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| openSUSE:Leap 15.3 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| openSUSE:Leap Micro 5.2 | kernel-default | - | 5.3.18-150300.59.87.1 | fixed |
| openSUSE:Leap Micro 5.2 | kernel-default-base | - | 5.3.18-150300.59.87.1.150300.18.50.2 | fixed |
| Red Hat:enterprise_linux:8::baseos | kernel | - | 0:4.18.0-372.9.1.el8 | fixed |