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CVE-2024-26583

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: tls: fix race between async notify and socket close The submitting thread (one which called recvmsg/sendmsg) may exit as soon a…

Published Feb 21, 2024CWE-362EPSS 0.55%

Overview

CVE-2024-26583 is a critical-severity vulnerability. It was published on February 21, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

tls: fix race between async notify and socket close

The submitting thread (one which called recvmsg/sendmsg)

may exit as soon as the async crypto handler calls complete()

so any code past that point risks touching already freed data.

Try to avoid the locking and extra flags altogether.

Have the main thread hold an extra reference, this way

we can depend solely on the atomic ref counter for

synchronization.

Don't futz with reiniting the completion, either, we are now

tightly controlling when completion fires.

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/6209319b2efdd8524691187ee99c40637558fa33Refgit.kernel.org/stable/c/7a3ca06d04d589deec81f56229a9a9d62352ce01Refgit.kernel.org/stable/c/86dc27ee36f558fe223dbdfbfcb6856247356f4aRefgit.kernel.org/stable/c/aec7961916f3f9e88766e2688992da6980f11b8dRefgit.kernel.org/stable/c/f17d21ea73918ace8afb9c2d8e734dbf71c2c9d7Refgit.kernel.org/stable/c/6209319b2efdd8524691187ee99c40637558fa33Refgit.kernel.org/stable/c/7a3ca06d04d589deec81f56229a9a9d62352ce01Refgit.kernel.org/stable/c/86dc27ee36f558fe223dbdfbfcb6856247356f4aRefgit.kernel.org/stable/c/aec7961916f3f9e88766e2688992da6980f11b8dRefgit.kernel.org/stable/c/f17d21ea73918ace8afb9c2d8e734dbf71c2c9d7

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26583?

CVE-2024-26583 is a critical-severity vulnerability. It was published on February 21, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-26583?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-26583?

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-2024-26583?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26583 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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