Improper Input Validation Affecting microcode_ctl package, versions <4:20220809-2.20250211.1.el8_8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-RHEL8-MICROCODECTL-9507521
  • published21 Mar 2025
  • disclosed12 Feb 2025

Introduced: 12 Feb 2025

CVE-2023-34440  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:8 microcode_ctl to version 4:20220809-2.20250211.1.el8_8 or higher.
This issue was patched in RHEA-2025:2421.

NVD Description

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

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

CVSS Base Scores

version 3.1