Out-of-bounds Read Affecting shim package, versions <15.8-0ubuntu1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.03% (6th percentile)

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  • Snyk IDSNYK-UBUNTU2410-SHIM-8195867
  • published15 Oct 2024
  • disclosed29 Jan 2024

Introduced: 29 Jan 2024

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

How to fix?

Upgrade Ubuntu:24.10 shim to version 15.8-0ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim package and not the shim package as distributed by Ubuntu. See How to fix? for Ubuntu:24.10 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