Description
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected products
- gnu / grub22.12
- RedHat / enterprise_linux8.0 – 8.0
- RedHat / enterprise_linux9.0 – 9.0
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:2456
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2024:3184
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2023-4693
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2238343
- MISChttps://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/
- MAILING_LISThttps://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
- MAILING_LISThttps://seclists.org/oss-sec/2023/q4/37
Updated 38m ago · 8 sources