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redhatcveRedhat.comRH:CVE-2023-4693
HistoryOct 03, 2023 - 6:24 p.m.

CVE-2023-4693

2023-10-0318:24:46
redhat.com
access.redhat.com
28
grub2
ntfs
out-of-bounds read
memory leak
confidentiality risk

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

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

32.6%

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.

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

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

32.6%