CVE-2021-26322 Weak cryptography in 1st Gen AMD EPYC™
AMD EPYC firmware fails to use random IVs for platform keys, enabling two-time pad attacks that expose sensitive cryptographic material.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26322?
CVE-2021-26322 is a high-severity vulnerability in Amd Epyc 7232p Firmware, published on 16 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
Which versions are affected by CVE-2021-26322?
It affects 57 products.
Products include Amd Epyc 7232p Firmware, Amd Epyc 7251 Firmware, Amd Epyc 7252 Firmware, Amd Epyc 7261 Firmware, Amd Epyc 7262 Firmware, Amd Epyc 7272 Firmware and 51 more.
How do I fix CVE-2021-26322?
No fix has been published for CVE-2021-26322 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26322 being exploited?
There is no known exploitation of CVE-2021-26322 in the wild and no public exploit code.
Other vulnerabilities in Amd Epyc 7232p Firmware
Sources
Also known as GHSA-q556-rcvc-qq2m.