Use-After-Free Vulnerability in AMD Guest Context Management
CVE-2023-20519

3.3LOW

Key Information:

Vendor

Amd
Status
3rd Gen Amd Epyc™ Processors
4th Gen Amd Epyc™ Processors
Vendor
CVE Published:
14 November 2023

What is CVE-2023-20519?

A Use-After-Free vulnerability exists in the management of Secure Nested Paging (SNP) guest context within AMD products. This flaw may enable a malicious hypervisor to impersonate a guest's migration agent, potentially resulting in unauthorized access and jeopardizing the integrity of the guest's system. It highlights the need for improved security measures in virtualization environments to protect against exploitation.

Affected Version(s)

3rd Gen AMD EPYC™ Processors x86 various

4th Gen AMD EPYC™ Processors x86 various

References

https://www.amd.com/en/corporate/product-security/bulleti...
vendor-advisory

CVSS V3.1

Score:
3.3
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.