Vulnerabilities > CVE-2023-4692 - Out-of-bounds Write vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 10 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
References
- https://access.redhat.com/security/cve/CVE-2023-4692
- https://bugzilla.redhat.com/show_bug.cgi?id=2236613
- https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/
- https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
- https://seclists.org/oss-sec/2023/q4/37
- https://access.redhat.com/errata/RHSA-2024:2456
- https://access.redhat.com/errata/RHSA-2024:3184