CVE-2022-27672

Description

When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.

Affected products

• AMD / 1st Gen AMD EPYC™ ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / 2nd Gen AMD EPYC™ ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / 2nd Gen AMD Ryzen™ Threadripper™ ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / 3rd Gen AMD Ryzen™ Threadripper™ ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / 7th Generation AMD A-Series APUsContact your OS vendor – Contact your OS vendor
• AMD / Athlon™ Mobile ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / Athlon™ X4 ProcessorContact your OS vendor – Contact your OS vendor
• AMD / Ryzen™ 2000 Series ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / Ryzen™ 3000 Series ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / Ryzen™ 4000 Series ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / Ryzen™ 5000 Series ProcessorsContact your OS vendor – Contact your OS vendor
• AMD / Ryzen™ Threadripper™ PRO ProcessorContact your OS vendor – Contact your OS vendor

References

• MISChttps://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
• MISChttps://security.gentoo.org/glsa/202402-07