CVE-2023-20592

2023-11-1500:28:23

redhat.com

access.redhat.com

amd cpus

hypervisor

cache behavior

vm memory

security flaw

cpu vulnerability

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

Low

EPSS

0.001

Percentile

16.0%

JSON

A flaw was found in some of AMD CPU’s due to improper or unexpected behavior of the INVD. This issue may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU, potentially leading to a loss of guest virtual machine (VM) memory integrity.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.