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 •
CVSS: 6.5EPSS: 0%CPEs: 250EXPL: 0CVE-2022-29900 – hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions
https://notcve.org/view.php?id=CVE-2022-29900
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. Las predicciones de bifurcación mal entrenadas para las instrucciones de retorno pueden permitir la ejecución arbitraria de código especulativo bajo ciertas condiciones dependientes de la microarquitectura A flaw was found in hw. Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. • https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYI3OMJ7RIZNL3C6GUWNANNPEUUID6FM https://security.gentoo.org/glsa/202402-07 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1037 https://www.debian.org/security/2022/dsa-5207 https://www.secpod.com/blog/retbleed-intel-and-amd-processor-information-disclosure-vulnerability https://access.redhat.com/security/cve/CVE-2022-29900 https • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer •
CVSS: 6.5EPSS: 0%CPEs: 284EXPL: 0CVE-2022-23823
https://notcve.org/view.php?id=CVE-2022-23823
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure. Una vulnerabilidad potencial en algunos procesadores AMD que usan el escalado de frecuencia puede permitir a un atacante autenticado ejecutar un ataque de tiempo para permitir potencialmente la divulgación de información • https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1038 • CWE-203: Observable Discrepancy •