CVE-2021-46744

medium

Description

An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033

http://www.openwall.com/lists/oss-security/2022/08/08/6

Details

Source: MITRE

Published: 2022-05-11

Updated: 2022-10-26

Type: CWE-668

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 6.5

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

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM