CVE-2021-1104

Published on: 08/13/2021 12:00:00 AM UTC

Last Modified on: 08/23/2021 08:30:00 PM UTC

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Certain versions of Instruction Set Manual from Risc-v contain the following vulnerability:

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.

  • CVE-2021-1104 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as CRITICAL severity.
  • Affected Vendor/Software: URL Logo RISCV.org - Machine Trap Base Address (MTVEC) Register version All versions

CVSS3 Score: 9.8 - CRITICAL

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 7.5 - HIGH

Access
Vector
Access
Complexity
Authentication
NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL PARTIAL

CVE References

Description Tags Link
Video: Glitching RISC-V chips: MTVEC corruption for hardening ISA | Adam Zabrocki and Alex Matrosov, DEF CON 29 - RISC-V International riscv.org
text/html
URL Logo CONFIRM riscv.org/news/2021/08/video-glitching-risc-v-chips-mtvec-corruption-for-hardening-isa-adam-zabrocki-and-alex-matrosov-def-con-29/

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationRisc-vInstruction Set ManualAllAllAllAll
  • cpe:2.3:a:risc-v:instruction_set_manual:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-1104 : The RISC-V Instruction Set Manual contains a documented ambiguity for the Machine Trap Vector Base… twitter.com/i/web/status/1… 2021-08-13 16:05:21
© CVE.report 2021 Twitter Nitter Twitter Viewer |

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