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CVE-2024-26988

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: init/main.c: Fix potential static_command_line memory overflow We allocate memory of size 'xlen + strlen(boot_command_line) + 1…

Published May 1, 2024CWE-787EPSS 0.28%

Overview

CVE-2024-26988 is a high-severity vulnerability. It was published on May 1, 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:

init/main.c: Fix potential static_command_line memory overflow

We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for

static_command_line, but the strings copied into static_command_line are

extra_command_line and command_line, rather than extra_command_line and

boot_command_line.

When strlen(command_line) > strlen(boot_command_line), static_command_line

will overflow.

This patch just recovers strlen(command_line) which was miss-consolidated

with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add

checks for the return value of memblock_alloc*()")

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/0dc727a4e05400205358a22c3d01ccad2c8e1fe4Refgit.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903aRefgit.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9Refgit.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4cceaRefgit.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8Refgit.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034Refgit.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4Refgit.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903aRefgit.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9Refgit.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26988?

CVE-2024-26988 is a high-severity vulnerability. It was published on May 1, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26988?

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-2024-26988?

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-2024-26988?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26988 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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