Vulnerability CVE-2023-4692: Information

Description

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.

Severity: HIGH (7.8) Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published: Oct. 25, 2023
Modified: May 22, 2024
Error type identifier: CWE-787

Fixed packages

References to Advisories, Solutions, and Tools

    1. Configuration 1

      cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
      End excliding
      2.12

      Configuration 2

      cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*