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CVE-2024-42306

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: udf: Avoid using corrupted block bitmap buffer When the filesystem block bitmap is corrupted, we detect the corruption while lo…

Published Aug 17, 2024EPSS 0.25%

Overview

CVE-2024-42306 is a high-severity vulnerability. It was published on August 17, 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:

udf: Avoid using corrupted block bitmap buffer

When the filesystem block bitmap is corrupted, we detect the corruption

while loading the bitmap and fail the allocation with error. However the

next allocation from the same bitmap will notice the bitmap buffer is

already loaded and tries to allocate from the bitmap with mixed results

(depending on the exact nature of the bitmap corruption). Fix the

problem by using BH_verified bit to indicate whether the bitmap is valid

or not.

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/2199e157a465aaf98294d3932797ecd7fce942d5Refgit.kernel.org/stable/c/271cab2ca00652bc984e269cf1208699a1e09cddRefgit.kernel.org/stable/c/57053b3bcf3403b80db6f65aba284d7dfe7326afRefgit.kernel.org/stable/c/6a43e3c210df6c5f00570f4be49a897677dbcb64Refgit.kernel.org/stable/c/8ca170c39eca7cad6e0cfeb24e351d8f8eddcd65Refgit.kernel.org/stable/c/a90d4471146de21745980cba51ce88e7926bcc4fRefgit.kernel.org/stable/c/cae9e59cc41683408b70b9ab569f8654866ba914Reflists.debian.org/debian-lts-announce/2024/10/msg00003.htmlReflists.debian.org/debian-lts-announce/2025/01/msg00001.htmlRefcert-portal.siemens.com/productcert/html/ssa-265688.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42306?

CVE-2024-42306 is a high-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-42306?

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-2024-42306?

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-2024-42306?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42306 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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