CVE-2023-4969

2024-01-1600:00:00

ubuntu.com

gpu

sensitive data

local memory

amd

new mode

prevent attack

firmware updates

linux-firmware

6.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

28.7%

JSON

A GPU kernel can read sensitive data from another GPU kernel (even from
another user or app) through an optimized GPU memory region called local
memory on various architectures.

Notes

Author	Note
alexmurray	According to the upstream AMD advisory, they plan to create a new mode to prevent this attack and more information will be available in March 2024 - unsure if this will come via GPU firmware updates in linux-firmware but assigning this CVE there for now until we get more information.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux-firmware< anyUNKNOWN
ubuntu20.04noarchlinux-firmware< anyUNKNOWN
ubuntu22.04noarchlinux-firmware< anyUNKNOWN
ubuntu23.10noarchlinux-firmware< anyUNKNOWN
ubuntu24.04noarchlinux-firmware< anyUNKNOWN
ubuntu14.04noarchlinux-firmware< anyUNKNOWN
ubuntu16.04noarchlinux-firmware< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux-firmware	< any	UNKNOWN
ubuntu	20.04	noarch	linux-firmware	< any	UNKNOWN
ubuntu	22.04	noarch	linux-firmware	< any	UNKNOWN
ubuntu	23.10	noarch	linux-firmware	< any	UNKNOWN
ubuntu	24.04	noarch	linux-firmware	< any	UNKNOWN
ubuntu	14.04	noarch	linux-firmware	< any	UNKNOWN
ubuntu	16.04	noarch	linux-firmware	< any	UNKNOWN