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.

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Deploy the Patch

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

JSON
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