Out-of-bounds Write Affecting grub2-snapper-plugin package, versions <2.06-150500.29.8.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-SLES155-GRUB2SNAPPERPLUGIN-6023528
  • published21 Oct 2023
  • disclosed20 Oct 2023

Introduced: 20 Oct 2023

CVE-2023-4692  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 grub2-snapper-plugin to version 2.06-150500.29.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-snapper-plugin package and not the grub2-snapper-plugin package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.

CVSS Scores

version 3.1