CVE-2021-1104

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-1104
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.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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

Configuration 1 (hide)

cpe:2.3:a:risc-v:instruction_set_manual:*:*:*:*:*:*:*:*
History

21 Nov 2024, 05:43

Type Values Removed Values Added
References () https://riscv.org/news/2021/08/video-glitching-risc-v-chips-mtvec-corruption-for-hardening-isa-adam-zabrocki-and-alex-matrosov-def-con-29/ - Exploit, Vendor Advisory () https://riscv.org/news/2021/08/video-glitching-risc-v-chips-mtvec-corruption-for-hardening-isa-adam-zabrocki-and-alex-matrosov-def-con-29/ - Exploit, Vendor Advisory

23 Aug 2021, 20:30

Type Values Removed Values Added
CPE cpe:2.3:a:risc-v:instruction_set_manual:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 9.8
CWE CWE-908
References (CONFIRM) https://riscv.org/news/2021/08/video-glitching-risc-v-chips-mtvec-corruption-for-hardening-isa-adam-zabrocki-and-alex-matrosov-def-con-29/ - (CONFIRM) https://riscv.org/news/2021/08/video-glitching-risc-v-chips-mtvec-corruption-for-hardening-isa-adam-zabrocki-and-alex-matrosov-def-con-29/ - Exploit, Vendor Advisory

13 Aug 2021, 16:24

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-13 16:15

Updated : 2024-11-21 05:43

NVD link : CVE-2021-1104

Mitre link : CVE-2021-1104

CVE.ORG link : CVE-2021-1104

JSON object : View

Products Affected

risc-v

  • instruction_set_manual
CWE
CWE-908

Use of Uninitialized Resource