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CVE-2023-52898

4.7 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference when host dies Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race and cause…

Published Aug 21, 2024CWE-476EPSS 0.24%

Overview

CVE-2023-52898 is a medium-severity vulnerability. It was published on August 21, 2024 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

xhci: Fix null pointer dereference when host dies

Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race

and cause null pointer dereference when host suddenly dies.

Usb core may call xhci_free_dev() which frees the xhci->devs[slot_id]

virt device at the same time that xhci_kill_endpoint_urbs() tries to

loop through all the device's endpoints, checking if there are any

cancelled urbs left to give back.

hold the xhci spinlock while freeing the virt device

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

Refgit.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2eRefgit.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368Refgit.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1Refgit.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7Refgit.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5eaRefgit.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52898?

CVE-2023-52898 is a medium-severity vulnerability. It was published on August 21, 2024 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2023-52898?

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52898?

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-2023-52898?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52898 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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