#VU84018 Use-after-free in 3rd Gen AMD EPYC Processors and 4th Gen AMD EPYC Processors - CVE-2023-20519

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Main Vulnerability Database Vulnerabilities #VU84018

#VU84018 Use-after-free in 3rd Gen AMD EPYC Processors and 4th Gen AMD EPYC Processors - CVE-2023-20519

Published: December 8, 2023


Vulnerability identifier: #VU84018
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-20519
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
3rd Gen AMD EPYC Processors
4th Gen AMD EPYC Processors
Software vendor:
AMD

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in the management of an SNP guest context page. A malicious hypervisor can masquerade as the guest's migration agent and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links