Use After Free Affecting grub2 package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-UNMANAGED-GRUB2-6592940
  • published9 Apr 2024
  • disclosed5 Apr 2024
  • creditUnknown

Introduced: 5 Apr 2024

CVE-2024-2312  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Use After Free due to the improper handling of module finalization functions upon the exit command. Specifically, the failure to call module fini functions leads to the peimage module not releasing UEFI system table hooks properly. This potentially allows an attacker to bypass secure boot mechanisms by exploiting the lingering hooks.

CVSS Scores

version 3.1