CVE-2021-26339

medium

Description

A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Details

Source: Mitre, NVD

Published: 2022-05-11

Updated: 2022-05-23

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium