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Affected Component
Analysis
grub
Exploitable
Name
CVE-2023-4692
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.
Published Date
Updated Date
Workaround
-
Advisories
https://access.redhat.com/security/cve/CVE-2023-4692Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2236613Issue Tracking
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/Exploit
https://seclists.org/oss-sec/2023/q4/37Mailing List
https://access.redhat.com/security/cve/CVE-2023-4692Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2236613Issue Tracking
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/Exploit
https://seclists.org/oss-sec/2023/q4/37Mailing List
Analysis#
Vulnerability Ratings#
7.5
CVSSv31
7.8
CVSSv31
NaN
other