Out-of-Bounds Affecting kernel-macros package, versions <4.12.14-150.78.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES150-KERNELMACROS-2657986
  • published14 Apr 2022
  • disclosed7 Dec 2021

Introduced: 7 Dec 2021

CVE-2021-22543  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-macros to version 4.12.14-150.78.1 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:15.0 relevant fixed versions and status.

An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.

CVSS Scores

version 3.1