Error Path in PCI MSI Leads to Lock Release Without Held
CVE-2024-31143

7.5HIGH

Key Information:

Vendor

Xen Project
Status
Xen Project
Vendor
CVE Published:
18 July 2024

What is CVE-2024-31143?

The PCI MSI Multiple Message feature has a vulnerability that arises during the setup of multiple consecutive interrupt vectors. This processing can result in an error state that improperly releases a lock, even when it is not held. This condition could be exploited in various scenarios, creating potential security risks for systems utilizing this feature.

Affected Version(s)

Xen consult Xen advisory XSA-458

References

https://xenbits.xenproject.org/xsa/advisory-458.html

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Jan Beulich of SUSE.
.