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CVE-2023-4693

UNKNOWN
Published 2023-10-25T10:27:29.100Z
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CVSS Score

V3.1
5.3
/10
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.007
Higher than 0.7% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
NONE
Availability
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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Red Hat

Red Hat Enterprise Linux 8

Affected Versions:

1:2.02-156.el8
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

1:2.06-77.el9
Red Hat

Red Hat Enterprise Linux 7

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-r62p-gp92-7444

Advisory Details

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 Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-4693
WEB https://access.redhat.com/errata/RHSA-2024:2456
WEB https://access.redhat.com/errata/RHSA-2024:3184
WEB https://access.redhat.com/security/cve/CVE-2023-4693
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2238343
WEB https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q
WEB https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
WEB https://seclists.org/oss-sec/2023/q4/37
WEB https://security.gentoo.org/glsa/202311-14
WEB https://security.netapp.com/advisory/ntap-20231208-0002

Advisory provided by GitHub Security Advisory Database. Published: October 25, 2023, Modified: May 22, 2024

References

https://access.redhat.com/errata/RHSA-2024:2456
https://access.redhat.com/errata/RHSA-2024:3184
https://access.redhat.com/security/cve/CVE-2023-4693
https://bugzilla.redhat.com/show_bug.cgi?id=2238343
https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/
https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
https://seclists.org/oss-sec/2023/q4/37
Published: 2023-10-25T10:27:29.100Z
Last Modified: 2024-11-23T03:30:32.531Z
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