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CVE-2024-43877

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: media: pci: ivtv: Add check for DMA map result In case DMA fails, 'dma->SG_length' is 0.

Published Aug 21, 2024CWE-125EPSS 0.22%

Overview

CVE-2024-43877 is a high-severity vulnerability. It was published on August 21, 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:

media: pci: ivtv: Add check for DMA map result

In case DMA fails, 'dma->SG_length' is 0. This value is later used to

access 'dma->SGarray[dma->SG_length - 1]', which will cause out of

bounds access.

Add check to return early on invalid value. Adjust warnings accordingly.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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/24062aa7407091dee3e45a8e8037df437e848718Refgit.kernel.org/stable/c/38f72c7e7c6b55614f9407555fd5ce9d019b0fa4Refgit.kernel.org/stable/c/3d8fd92939e21ff0d45100ab208f8124af79402aRefgit.kernel.org/stable/c/629913d6d79508b166c66e07e4857e20233d85a9Refgit.kernel.org/stable/c/81d0664bed91a858c7b50c263954b59d65f1b414Refgit.kernel.org/stable/c/c766065e8272085ea9c436414b7ddf1f12e7787bReflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-43877?

CVE-2024-43877 is a high-severity vulnerability. It was published on August 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-43877?

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-2024-43877?

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-2024-43877?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-43877 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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