CVE-2023-4969
Published: 16 January 2024
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. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux-firmware Launchpad, Ubuntu, Debian |
bionic |
Deferred
(2024-02-19)
|
| focal |
Deferred
(2024-02-19)
|
|
| jammy |
Deferred
(2024-02-19)
|
|
| lunar |
Ignored
(end of life, was deferred [2024-02-19])
|
|
| mantic |
Deferred
(2024-02-19)
|
|
| noble |
Deferred
(2024-02-19)
|
|
| trusty |
Deferred
(2024-02-19)
|
|
| upstream |
Needs triage
|
|
| xenial |
Deferred
(2024-02-19)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
References
- https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_API.html#_fundamental_memory_regions
- https://registry.khronos.org/vulkan/specs/1.3-extensions/html/index.html
- https://kb.cert.org/vuls/id/446598
- https://blog.trailofbits.com
- https://www.kb.cert.org/vuls/id/446598
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6010.html
- https://www.cve.org/CVERecord?id=CVE-2023-4969
- NVD
- Launchpad
- Debian