CVE-2021-26408
https://notcve.org/view.php?id=CVE-2021-26408
Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality. Una comprobación insuficiente de los puntos de la curva elíptica en el firmware de SEV-legacy puede comprometer la migración de los huéspedes de SEV-legacy, resultando potencialmente en una pérdida de la integridad o la confidencialidad de los huéspedes • https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021 •
CVE-2021-26341 – hw: cpu: AMD CPUs may transiently execute beyond unconditional direct branch
https://notcve.org/view.php?id=CVE-2021-26341
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage. Algunas CPUs de AMD pueden ejecutar transitoriamente más allá de las ramas directas no condicionales, lo que puede potencialmente resultar en un filtrado de datos A flaw was found in hw. This issue can cause AMD CPUs to transiently execute beyond unconditional direct branches. • http://www.openwall.com/lists/oss-security/2022/03/18/2 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1026 https://access.redhat.com/security/cve/CVE-2021-26341 https://bugzilla.redhat.com/show_bug.cgi?id=2061703 • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer CWE-552: Files or Directories Accessible to External Parties •
CVE-2021-26401 – hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715
https://notcve.org/view.php?id=CVE-2021-26401
LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs. LFENCE/JMP (mitigación V2-2) puede no mitigar suficientemente CVE-2017-5715 en algunas CPUs AMD A flaw was found in hw. The speculative execution window of AMD LFENCE/JMP mitigation (MITIGATION V2-2) may be large enough to be exploited on AMD CPUs. • http://www.openwall.com/lists/oss-security/2022/03/18/2 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1036 https://access.redhat.com/security/cve/CVE-2021-26401 https://bugzilla.redhat.com/show_bug.cgi?id=2061700 •
CVE-2021-44850
https://notcve.org/view.php?id=CVE-2021-44850
On Xilinx Zynq-7000 SoC devices, physical modification of an SD boot image allows for a buffer overflow attack in the ROM. Because the Zynq-7000's boot image header is unencrypted and unauthenticated before use, an attacker can modify the boot header stored on an SD card so that a secure image appears to be unencrypted, and they will be able to modify the full range of register initialization values. Normally, these registers will be restricted when booting securely. Of importance to this attack are two registers that control the SD card's transfer type and transfer size. These registers could be modified a way that causes a buffer overflow in the ROM. • https://support.xilinx.com/s/article/47915 https://support.xilinx.com/s/article/76964 • CWE-345: Insufficient Verification of Data Authenticity •
CVE-2020-12965
https://notcve.org/view.php?id=CVE-2020-12965
When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage. Cuando se combinan con secuencias de software específicas, las CPUs de AMD pueden ejecutar transitoriamente cargas no canónicas y almacenar usando sólo los 48 bits de dirección inferiores, resultando potencialmente en un filtrado de datos • http://www.openwall.com/lists/oss-security/2023/12/05/3 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1010 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •