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CVE-2024-43833

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: media: v4l: async: Fix NULL pointer dereference in adding ancillary links In v4l2_async_create_ancillary_links(), ancillary lin…

Published Aug 17, 2024CWE-476EPSS 0.22%

Overview

CVE-2024-43833 is a medium-severity vulnerability. It was published on August 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:

media: v4l: async: Fix NULL pointer dereference in adding ancillary links

In v4l2_async_create_ancillary_links(), ancillary links are created for

lens and flash sub-devices. These are sub-device to sub-device links and

if the async notifier is related to a V4L2 device, the source sub-device

of the ancillary link is NULL, leading to a NULL pointer dereference.

Check the notifier's sd field is non-NULL in

v4l2_async_create_ancillary_links().

[Sakari Ailus: Reword the subject and commit messages slightly.]

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/249212ceb4187783af3801c57b92a5a25d410621Refgit.kernel.org/stable/c/9b4667ea67854f0b116fe22ad11ef5628c5b5b5fRefgit.kernel.org/stable/c/b87e28050d9b0959de24574d587825cfab2f13fbRefgit.kernel.org/stable/c/fe0f92fd5320b393e44ca210805e653ea90cc982Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-43833?

CVE-2024-43833 is a medium-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-43833?

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-2024-43833?

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-2024-43833?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-43833 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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