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CVE-2024-45817

7.3 · HIGH

In x86's APIC (Advanced Programmable Interrupt Controller) architecture, error conditions are reported in a status register.

Published Sep 25, 2024CWE-209EPSS 0.54%

Overview

CVE-2024-45817 is a high-severity vulnerability. It was published on September 25, 2024 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refxenbits.xenproject.org/xsa/advisory-462.htmlRefwww.openwall.com/lists/oss-security/2024/09/24/1Refxenbits.xen.org/xsa/advisory-462.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-45817?

CVE-2024-45817 is a high-severity vulnerability. It was published on September 25, 2024 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2024-45817?

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-45817?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-45817?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-45817 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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