CVE-2021-26340

Published Dec 10, 2021

Last updated 3 years ago

Overview

Description
A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).
Source
psirt@amd.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
8.4
Impact score
5.8
Exploitability score
2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
3.6
Impact score
4.9
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:P/I:P/A:N

Weaknesses

nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending

Configurations