Information Loss or Omission Affecting libertas-sd8686-firmware package, versions <0:20201218-105.git05789708.el8_4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.02% (59th percentile)

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  • Snyk IDSNYK-RHEL8-LIBERTASSD8686FIRMWARE-18296147
  • published24 Jul 2026
  • disclosed14 Nov 2023

Introduced: 14 Nov 2023

CVE-2023-20592  (opens in a new tab)
CWE-221  (opens in a new tab)

How to fix?

Upgrade RHEL:8 libertas-sd8686-firmware to version 0:20201218-105.git05789708.el8_4 or higher.
This issue was patched in RHSA-2024:0561.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libertas-sd8686-firmware package and not the libertas-sd8686-firmware package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory integrity.

CVSS Base Scores

version 3.1