Out-of-bounds read at fs/ntfs.c
CVE-2023-4693

4.6MEDIUM

Key Information:

Vendor

Red Hat
Status
grub2
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
25 October 2023

What is CVE-2023-4693?

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.

References

https://access.redhat.com/security/cve/CVE-2023-4693
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2238343
issue-trackingx_refsource_REDHAT
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vu...

CVSS V3.1

Score:
4.6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.