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CVE-2024-35936

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks() The unhandled case in btrfs_relocate_sys_chunks() loop is…

Published May 19, 2024EPSS 0.23%

Overview

CVE-2024-35936 is a medium-severity vulnerability. It was published on May 19, 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:

btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()

The unhandled case in btrfs_relocate_sys_chunks() loop is a corruption,

as it could be caused only by two impossible conditions:

- at first the search key is set up to look for a chunk tree item, with

offset -1, this is an inexact search and the key->offset will contain

the correct offset upon a successful search, a valid chunk tree item

cannot have an offset -1

- after first successful search, the found_key corresponds to a chunk

item, the offset is decremented by 1 before the next loop, it's

impossible to find a chunk item there due to alignment and size

constraints

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/0d23b34c68c46cd225b55868bc8a269e3134816dRefgit.kernel.org/stable/c/1f9212cdbd005bc55f2b7422e7b560d9c02bd1daRefgit.kernel.org/stable/c/36c2a2863bc3896243eb724dc3fd4cf9aea633f2Refgit.kernel.org/stable/c/576164bd01bd795f8b09fb194b493103506b33c9Refgit.kernel.org/stable/c/7411055db5ce64f836aaffd422396af0075fdc99Refgit.kernel.org/stable/c/87299cdaae757f3f41212146cfb5b3af416b8385Refgit.kernel.org/stable/c/bebd9e0ff90034875c5dfe4bd514fd7055fc7a89Refgit.kernel.org/stable/c/d1ffa4ae2d591fdd40471074e79954ec45f147f7Refgit.kernel.org/stable/c/0d23b34c68c46cd225b55868bc8a269e3134816dRefgit.kernel.org/stable/c/1f9212cdbd005bc55f2b7422e7b560d9c02bd1da

How CyberStrike helps

Frequently asked questions

What is CVE-2024-35936?

CVE-2024-35936 is a medium-severity vulnerability. It was published on May 19, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-35936?

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-2024-35936?

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-2024-35936?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-35936 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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