CVE-2024-43828

5.5 · MEDIUM

Published Aug 17, 2024 linux CWE-835 EPSS 0.24% (15th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-43828 is a medium-severity vulnerability affecting linux linux_kernel. 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:

ext4: fix infinite loop when replaying fast_commit

When doing fast_commit replay an infinite loop may occur due to an

uninitialized extent_status struct. ext4_ext_determine_insert_hole() does

not detect the replay and calls ext4_es_find_extent_range(), which will

return immediately without initializing the 'es' variable.

Because 'es' contains garbage, an integer overflow may happen causing an

infinite loop in this function, easily reproducible using fstest generic/039.

This commit fixes this issue by unconditionally initializing the structure

in function ext4_es_find_extent_range().

Thanks to Zhang Yi, for figuring out the real problem!

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 5.10, < 5.10.224	Affected

References

Ref git.kernel.org/stable/c/0619f7750f2b178a1309808832ab20d85e0ad121 Ref git.kernel.org/stable/c/181e63cd595c688194e07332f9944b3a63193de2 Ref git.kernel.org/stable/c/5ed0496e383cb6de120e56991385dce70bbb87c1 Ref git.kernel.org/stable/c/81f819c537d29932e4b9267f02411cbc8b355178 Ref git.kernel.org/stable/c/907c3fe532253a6ef4eb9c4d67efb71fab58c706 Ref git.kernel.org/stable/c/c6e67df64783e99a657ef2b8c834ba2bf54c539c Ref lists.debian.org/debian-lts-announce/2024/10/msg00003.html Ref lists.debian.org/debian-lts-announce/2025/01/msg00001.html Ref cert-portal.siemens.com/productcert/html/ssa-265688.html

Frequently Asked Questions

What is CVE-2024-43828?

CVE-2024-43828 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-43828?

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-2024-43828?

How can CyberStrike help with CVE-2024-43828?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-43828 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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