CVE-2021-43056 Affecting kernel-macros package, versions <5.3.18-24.93.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-SLES152-KERNELMACROS-2656413
  • published14 Apr 2022
  • disclosed19 Nov 2021

Introduced: 19 Nov 2021

CVE-2021-43056  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-macros to version 5.3.18-24.93.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-macros package and not the kernel-macros package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.

CVSS Scores

version 3.1