CVE-2023-31304 — Improper input validation in SMU may allow an attacker with privileges and a com

Improper input validation in SMU may allow an attacker with privileges and a compromised physical function (PF) to modify the PCIe® lane count and speed, potentially leading to a loss of availability.

01What is this vulnerability?

Improper input validation in SMU may allow an attacker with privileges and a compromised physical function (PF) to modify the PCIe® lane count and speed, potentially leading to a loss of availability.

02Affected products

Vendor	Product	Versions
AMD	AMD Radeon™ RX 6000 Series Graphics Cards	AMD Software: Adrenalin Edition 23.12.1 (23.30.13.01)
AMD	AMD Radeon™ PRO W6000 Series Graphics Cards	AMD Software: PRO Edition 23.Q4 (23.30.13.03)

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-08-13T16:53:44.552Z
• Last modified: 2024-11-04T16:38:19.642Z

09References

• www.amd.com — https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html