An issue in “Zen 2” CPUs, under specific microarchitectural circumstances,...

Vulnerability Description

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.

References

• https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7008
• http://xenbits.xen.org/xsa/advisory-433.html
• http://www.openwall.com/lists/oss-security/2023/07/24/3
• http://seclists.org/fulldisclosure/2023/Jul/43
• http://www.openwall.com/lists/oss-security/2023/07/25/5
• http://www.openwall.com/lists/oss-security/2023/07/25/6
• http://www.openwall.com/lists/oss-security/2023/07/25/1
• http://www.openwall.com/lists/oss-security/2023/07/25/13
• http://www.openwall.com/lists/oss-security/2023/07/25/17
• http://www.openwall.com/lists/oss-security/2023/07/25/12
• http://www.openwall.com/lists/oss-security/2023/07/25/16
• http://www.openwall.com/lists/oss-security/2023/07/25/14
• http://www.openwall.com/lists/oss-security/2023/07/25/15
• http://www.openwall.com/lists/oss-security/2023/07/26/1
• https://cmpxchg8b.com/zenbleed.html
• https://www.debian.org/security/2023/dsa-5459
• https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
• https://www.debian.org/security/2023/dsa-5462
• https://www.debian.org/security/2023/dsa-5461
• https://lists.debian.org/debian-lts-announce/2023/07/msg00033.html
• http://www.openwall.com/lists/oss-security/2023/07/31/2
• https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SD2G74BXS2SWOE3FIQJ6X76S3A7PDGML/
• http://www.openwall.com/lists/oss-security/2023/08/08/7
• http://www.openwall.com/lists/oss-security/2023/08/08/8
• http://www.openwall.com/lists/oss-security/2023/08/08/6
• http://www.openwall.com/lists/oss-security/2023/08/16/4
• http://www.openwall.com/lists/oss-security/2023/08/16/5
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CP6WQO3CDPLE5O635N7TAL5KCZ6HZ4FE/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HKKYIK2EASDNUV4I7EFJKNBVO3KCKGRR/
• http://www.openwall.com/lists/oss-security/2023/09/22/9
• http://www.openwall.com/lists/oss-security/2023/09/22/11
• http://www.openwall.com/lists/oss-security/2023/09/25/4
• http://www.openwall.com/lists/oss-security/2023/09/25/7
• https://security.netapp.com/advisory/ntap-20240531-0004/