Debug Exception Delivery in Secure Nested Paging

CVE-2023-20573
3.2LOW

Key Information

Vendor
AMD
Status
3rd Gen AMD EPYC™ Processors
4th Gen AMD EPYC™ Processors
Vendor
CVE Published:
11 January 2024

Badges

👾 Exploit Exists🔴 Public PoC

Summary

A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information.

Affected Version(s)

3rd Gen AMD EPYC™ Processors <= various

4th Gen AMD EPYC™ Processors <= Various

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

cve-2023-20573-poc
Created by Freax13

CVSS V3.1

Score:
3.2
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published.

  • 👾

    Exploit exists.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database1 Proof of Concept(s)
.