Improper Zeroization of Hardware Register Affecting kernel-debug-modules-extra package, versions <0:4.18.0-305.114.1.el8_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.09% (40th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELDEBUGMODULESEXTRA-6092924
  • published29 Nov 2023
  • disclosed25 Jul 2023

Introduced: 25 Jul 2023

CVE-2023-20593  (opens in a new tab)
CWE-1239  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-debug-modules-extra to version 0:4.18.0-305.114.1.el8_4 or higher.
This issue was patched in RHSA-2023:7557.

NVD Description

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

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.

References

CVSS Scores

version 3.1