CVE-2023-20593 – hw: amd: Cross-Process Information Leak
https://notcve.org/view.php?id=CVE-2023-20593
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information. A flaw was found in hw, in “Zen 2” CPUs. This issue may allow an attacker to access sensitive information under specific microarchitectural circumstances. • http://seclists.org/fulldisclosure/2023/Jul/43 http://www.openwall.com/lists/oss-security/2023/07/24/3 http://www.openwall.com/lists/oss-security/2023/07/25/1 http://www.openwall.com/lists/oss-security/2023/07/25/12 http://www.openwall.com/lists/oss-security/2023/07/25/13 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/2023/07/25/1 • CWE-209: Generation of Error Message Containing Sensitive Information CWE-1239: Improper Zeroization of Hardware Register •
CVE-2022-27672 – kernel: AMD: Cross-Thread Return Address Predictions
https://notcve.org/view.php?id=CVE-2022-27672
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. A flaw was found in HW. 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. • https://security.gentoo.org/glsa/202402-07 https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045 https://access.redhat.com/security/cve/CVE-2022-27672 https://bugzilla.redhat.com/show_bug.cgi?id=2174765 •