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[email protected]CVE-2023-4692

HistoryOct 25, 2023 - 6:17 p.m.

CVE-2023-4692

2023-10-2518:17:41

CWE-787

CWE-122

[email protected]

web.nvd.nist.gov

375

cve-2023-4692

out-of-bounds write

grub2

ntfs filesystem

arbitrary code execution

secure boot protection bypass

nvd

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

AI Score

Confidence

Low

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.2%

JSON

An out-of-bounds write flaw was found in grub2’s NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub’s heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.

CPENameOperatorVersion
gnu:grub2gnu grub2lt2.12
gnu:grub2gnu grub2eq2.06-18.1
gnu:grub2gnu grub2eq2.01
gnu:grub2gnu grub2eq-
gnu:grub2gnu grub2eq1.98
gnu:grub2gnu grub2eq2.06
gnu:grub2gnu grub2eq2.04
gnu:grub2gnu grub2eq2.00
gnu:grub2gnu grub2eq2.06-150400.7.1
gnu:grub2gnu grub2eq2.02

CPE	Name	Operator	Version
gnu:grub2	gnu grub2	lt	2.12
gnu:grub2	gnu grub2	eq	2.06-18.1
gnu:grub2	gnu grub2	eq	2.01
gnu:grub2	gnu grub2	eq	-
gnu:grub2	gnu grub2	eq	1.98
gnu:grub2	gnu grub2	eq	2.06
gnu:grub2	gnu grub2	eq	2.04
gnu:grub2	gnu grub2	eq	2.00
gnu:grub2	gnu grub2	eq	2.06-150400.7.1
gnu:grub2	gnu grub2	eq	2.02