CVE-2024-45817

In x86's APIC (Advanced Programmable Interrupt Controller) architecture, error conditions are reported in a status register. Furthermore, the OS can opt to receive an interrupt when a new error occurs. It is possible to configure the error interrupt with an illegal vector, which generates an error when an error interrupt is raised. This case causes Xen to recurse through vlapic_error(). The recursion itself is bounded; errors accumulate in the the status register and only generate an interrupt when a new status bit becomes set. However, the lock protecting this state in Xen will try to be taken recursively, and deadlock.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://xenbits.xenproject.org/xsa/advisory-462.html	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2024/09/24/1	Mailing List Third Party Advisory
http://xenbits.xen.org/xsa/advisory-462.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*

History

No history.

Information

Published : 2024-09-25 11:15

Updated : 2026-01-14 15:46

NVD link : CVE-2024-45817

Mitre link : CVE-2024-45817

CVE.ORG link : CVE-2024-45817

JSON object : View

Products Affected

xen

xen

CWE

CWE-209

Generation of Error Message Containing Sensitive Information

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