Out-of-bounds Read Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-372.13.1.rt7.170.el8_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGKVM-4295718
  • published26 Jul 2021
  • disclosed16 Nov 2020

Introduced: 16 Nov 2020

CVE-2020-28915  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug-kvm to version 0:4.18.0-372.13.1.rt7.170.el8_6 or higher.
This issue was patched in RHSA-2022:5344.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A buffer over-read (at the framebuffer layer) in the fbcon code in the Linux kernel before 5.8.15 could be used by local attackers to read kernel memory, aka CID-6735b4632def.

CVSS Scores

version 3.1