Vulnerability Monitor

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CVE-2023-4692

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

2023-10-25T18:17:41.743

Last Modified

2024-11-21T08:35:41.970

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-122
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	grub2	< 2.12	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	redhat	enterprise_linux	9.0	Yes

References

https://access.redhat.com/errata/RHSA-2024:2456 ([email protected])
https://access.redhat.com/errata/RHSA-2024:3184 ([email protected])
https://access.redhat.com/security/cve/CVE-2023-4692 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2236613 Issue Tracking, Third Party Advisory ([email protected])
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/ Exploit, Third Party Advisory ([email protected])
https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html Mailing List ([email protected])
https://seclists.org/oss-sec/2023/q4/37 Mailing List, Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2024:2456 (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2024:3184 (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/cve/CVE-2023-4692 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2236613 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/oss-sec/2023/q4/37 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202311-14 (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20231208-0002/ (af854a3a-2127-422b-91ae-364da2661108)