CVSS: 7.8EPSS: 0%CPEs: 264EXPL: 0CVE-2023-20555
https://notcve.org/view.php?id=CVE-2023-20555
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM. • https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4003 • CWE-787: Out-of-bounds Write •
CVSS: 4.7EPSS: 0%CPEs: 340EXPL: 0CVE-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 •
CVSS: 5.5EPSS: 0%CPEs: 504EXPL: 0CVE-2022-23824
https://notcve.org/view.php?id=CVE-2022-23824
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure. IBPB no puede evitar que las predicciones de sucursales de retorno sean especificadas por objetivos de sucursales anteriores a IBPB, lo que lleva a una posible divulgación de información. • http://www.openwall.com/lists/oss-security/2022/11/10/2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NTQMPJC5N6XJYQ232OZFLK47HVZNRBY3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ https://security.gentoo.org/glsa/202402-07 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1040 https://www.debian.org/security/2023/dsa-5378 •
CVSS: 5.6EPSS: 0%CPEs: 358EXPL: 0CVE-2021-46778
https://notcve.org/view.php?id=CVE-2021-46778
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information. La contención del planificador de la unidad de ejecución puede conllevar a una vulnerabilidad de canal lateral encontrada en las microarquitecturas de CPU de AMD con nombre en código "Zen 1", "Zen 2" y "Zen 3" que usan multihilo simultáneo (SMT). Al medir el nivel de contención en las colas del programador, un atacante puede filtrar potencialmente información confidencial • https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039 • CWE-203: Observable Discrepancy •
CVSS: 6.5EPSS: 0%CPEs: 264EXPL: 0CVE-2022-23825 – hw: cpu: AMD: Branch Type Confusion (non-retbleed)
https://notcve.org/view.php?id=CVE-2022-23825
Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure. Los alias en el predictor de bifurcación pueden causar que algunos procesadores AMD predigan el tipo de bifurcación incorrecto, conllevando a una divulgación de información A flaw was found in hw. Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type, potentially leading to information disclosure. • http://www.openwall.com/lists/oss-security/2022/11/08/1 http://www.openwall.com/lists/oss-security/2022/11/10/2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4RW5FCIYFNCQOEFJEUIRW3DGYW7CWBG https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLSRW4LLTAT3CZMOYVNTC7YIYGX3KLED https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M27MB3QFNIJV4EQQSXWARHP3OGX6CR6K https://lists.fedoraproject.org/archives/list • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-668: Exposure of Resource to Wrong Sphere •