CVE-2021-1104

Sep 3, 2024

Published Date: 2021-08-13T16:15Z

Last Modified: 2021-08-23T20:30Z

CVSS Score: 9.8 (CRITICAL)

EPSS Score: 0.34%

Risk Score: 6.86 (HIGH)

Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.

CVSS: 9.8 | EPSS: 0.34%

NVD Links:

https://nvd.nist.gov/vuln/detail/CVE-2021-1104

Description: The RISC-V Instruction Set Manual contains a documented ambiguity for the Machine Trap Vector Base Address (MTVEC) register that may lead to a vulnerability due to the initial state of the register not being defined, potentially leading to information disclosure, data tampering and denial of service.

Mitre ATT&CK Technical v15.1

T1546.005 – Trap
T1154 – Trap
T1053.002 – At

Technical Analysis & Mitigation Measures

Reference Links

https://riscv.org/news/2021/08/video-glitching-risc-v-chips-mtvec-corruption-for-hardening-isa-adam-zabrocki-and-alex-matrosov-def-con-29/

Vendor - Produce - Version

instruction_set_manual - risc-v

Disclaimer

The content on this website is automatically sourced from external websites such as the National Vulnerability Database (NVD), GitHub, and other security-related sources. This content is for reference purposes only, and we are not responsible for the accuracy or integrity of the information linked or displayed from these sources.