CVE-2023-3161

A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2213485	Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0be	Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2213485	Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0be	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc6::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

History

No history.

Information

Published : 2023-06-12 20:15

Updated : 2025-03-11 15:15

NVD link : CVE-2023-3161

Mitre link : CVE-2023-3161

CVE.ORG link : CVE-2023-3161

JSON object : View

Products Affected

redhat

enterprise_linux

linux

linux_kernel

fedoraproject

fedora

CWE

CWE-1335

Incorrect Bitwise Shift of Integer

CWE-682

Incorrect Calculation

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