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CVE-2024-56603

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net: af_can: do not leave a dangling sk pointer in can_create() On error can_create() frees the allocated sk object, but sock_i…

Published Dec 27, 2024CWE-416EPSS 0.24%

Overview

CVE-2024-56603 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

net: af_can: do not leave a dangling sk pointer in can_create()

On error can_create() frees the allocated sk object, but sock_init_data()

has already attached it to the provided sock object. This will leave a

dangling sk pointer in the sock object and may cause use-after-free later.

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/1fe625f12d090d69f3f084990c7e4c1ff94bfe5fRefgit.kernel.org/stable/c/5947c9ac08f0771ea8ed64186b0d52e9029cb6c0Refgit.kernel.org/stable/c/811a7ca7320c062e15d0f5b171fe6ad8592d1434Refgit.kernel.org/stable/c/884ae8bcee749be43a071d6ed2d89058dbd2425cRefgit.kernel.org/stable/c/8df832e6b945e1ba61467d7f1c9305e314ae92feRefgit.kernel.org/stable/c/ce39b5576785bb3e66591145aad03d66bc3e778dRefgit.kernel.org/stable/c/db207d19adbac96058685f6257720906ad41d215Reflists.debian.org/debian-lts-announce/2025/03/msg00001.htmlReflists.debian.org/debian-lts-announce/2025/03/msg00002.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56603?

CVE-2024-56603 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-56603?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-56603?

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-2024-56603?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56603 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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