CVE-2023-4693
4.6 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.7%
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.
Affected configurations
References
access.redhat.com/errata/RHSA-2024:2456
access.redhat.com/errata/RHSA-2024:3184
access.redhat.com/security/cve/CVE-2023-4693
bugzilla.redhat.com/show_bug.cgi?id=2238343
dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/
lists.fedoraproject.org/archives/list/[email protected]/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L/
lists.fedoraproject.org/archives/list/[email protected]/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY/
lists.fedoraproject.org/archives/list/[email protected]/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q/
lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
seclists.org/oss-sec/2023/q4/37
security.gentoo.org/glsa/202311-14
security.netapp.com/advisory/ntap-20231208-0002/
Related
4.6 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
32.7%