SB2023110671 - Reliance on undefined behavior in Certain HPE ProLiant DL/DX/XL servers Using Certain AMD EPYC Processors. AMD-SB-3005: AMD
Published: November 6, 2023 Updated: June 13, 2024
Security Bulletin ID
SB2023110671
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Reliance on undefined behavior (CVE-ID: CVE-2023-20592)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to unexpected behavior of the INVD instruction in some AMD CPUs. A malicious hypervisor can affect cache line write-back behavior of the CPU and modify guest virtual machine (VM) memory.
Remediation
Install update from vendor's website.