CVE-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 •
CVE-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 •
CVE-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 •
CVE-2021-26339
https://notcve.org/view.php?id=CVE-2021-26339
A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers. Un bug en la lógica del núcleo de la CPU de AMD puede permitir a un atacante, usando un código específico de una máquina virtual no privilegiada, desencadenar un cuelgue del núcleo de la CPU resultando en una potencial denegación de servicio. AMD cree que el código específico incluye una secuencia de instrucciones x86 específica que no sería generada por los compiladores • https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028 •
CVE-2021-26390
https://notcve.org/view.php?id=CVE-2021-26390
A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data. Una UApp o ABL maliciosa o comprometida puede coaccionar al administrador de arranque para que corrompa la memoria arbitraria, lo que podría conllevar a una pérdida de la integridad de los datos • https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027 •