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CVE-2023-52672

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage Commit c73be61cede5 ("pipe: Add general notification queue support") a regression…

Published May 17, 2024CWE-400EPSS 0.26%

Overview

CVE-2023-52672 is a medium-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, 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:

pipe: wakeup wr_wait after setting max_usage

Commit c73be61cede5 ("pipe: Add general notification queue support") a

regression was introduced that would lock up resized pipes under certain

conditions. See the reproducer in [1].

The commit resizing the pipe ring size was moved to a different

function, doing that moved the wakeup for pipe->wr_wait before actually

raising pipe->max_usage. If a pipe was full before the resize occured it

would result in the wakeup never actually triggering pipe_write.

Set @max_usage and @nr_accounted before waking writers if this isn't a

watch queue.

[Christian Brauner <[email protected]>: rewrite to account for watch queues]

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/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8Refgit.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9Refgit.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24Refgit.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55Refgit.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60fRefgit.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4aRefgit.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8Refgit.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9Refgit.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24Refgit.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52672?

CVE-2023-52672 is a medium-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52672?

This vulnerability has a CVSS 3.1 base score of 5.5, 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-2023-52672?

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-2023-52672?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52672 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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