ByteOS Network

NVD Vulnerability Details :

CVE-2021-1104

Analyzed

Source-psirt@nvidia.com

Published At-13 Aug, 2021 | 16:15

Updated At-23 Aug, 2021 | 20:30

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary	2.0	7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P

Type: Primary

Version: 3.1

Base score: 9.8

Base severity: CRITICAL

Vector:

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

Type: Primary

Version: 2.0

Base score: 7.5

Base severity: HIGH

Vector:

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

CPE Matches

risc-v>>instruction_set_manual>>*

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

Weaknesses

CWE ID	Type	Source
CWE-908	Primary	nvd@nist.gov

CWE ID: CWE-908

Type: Primary

Source: nvd@nist.gov

References

Hyperlink	Source	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/	psirt@nvidia.com	Exploit Vendor Advisory

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

Source: psirt@nvidia.com

Resource:

Exploit

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History