Out-of-bounds Read Affecting mokutil package, versions <0:15.8-1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-RHEL7-MOKUTIL-6191182
  • published27 Apr 2024
  • disclosed23 Jan 2024

Introduced: 23 Jan 2024

CVE-2023-40550  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:7 mokutil to version 0:15.8-1.el7 or higher.
This issue was patched in RHSA-2024:1959.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mokutil package and not the mokutil package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.

CVSS Base Scores

version 3.1