CVE-2021-43056 Affecting kernel package, versions <0:4.18.0-372.9.1.el8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ROCKY8-KERNEL-3194206
  • published5 Jan 2023
  • disclosed28 Oct 2021

Introduced: 28 Oct 2021

CVE-2021-43056  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Rocky-Linux:8 kernel to version 0:4.18.0-372.9.1.el8 or higher.
This issue was patched in RLSA-2022:1988.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 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