CVE-2024-31143 — HIGH (7.5)

Vulnerability Description

An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xen	Xen	>= 4.4.0

Related Weaknesses (CWE)

CWE-832

References

https://xenbits.xenproject.org/xsa/advisory-458.htmlPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2024/07/16/3Mailing ListThird Party Advisory
http://xenbits.xen.org/xsa/advisory-458.htmlPatchVendor Advisory
https://xenbits.xenproject.org/xsa/advisory-458.htmlPatchVendor Advisory

FAQ

What is CVE-2024-31143?

CVE-2024-31143 is a vulnerability with a CVSS score of 7.5 (HIGH). An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen a...

How severe is CVE-2024-31143?

CVE-2024-31143 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2024-31143?

Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.