CVE-2023-4693
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
44/100
Published: 2023-10-25
Modified: 2026-11-02
First seen: 2026-11-02
Status: active
Attack Surface
Low Complexity
No Auth
No Interaction
Conf. Impact
CVSS Vector Breakdown
AV:
Physical
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
None
A:
None
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.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| gnu | grub2 | < 2.12 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (13)
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT