CVE-2018-8933 — The AMD EPYC Server processor chips have insufficient access control for protect

The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.

01What is this vulnerability?

The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2018-03-22T14:00:00.000Z
• Last modified: 2024-08-05T07:10:46.643Z

09References

• support.hpe.com — https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpe…
• amdflaws.com — https://amdflaws.com/
• blog.trailofbits.com — https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/
• community.amd.com — https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-te…
• safefirmware.com — https://safefirmware.com/amdflaws_whitepaper.pdf