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CVE-2024-38576

7.0 · HIGH

In the Linux kernel, the following vulnerability has been resolved: rcu: Fix buffer overflow in print_cpu_stall_info() The rcuc-starvation output from print_cpu_stall_info() might overflow the bu…

Published Jun 19, 2024CWE-120EPSS 0.26%

Overview

CVE-2024-38576 is a high-severity vulnerability. It was published on June 19, 2024 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, 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:

rcu: Fix buffer overflow in print_cpu_stall_info()

The rcuc-starvation output from print_cpu_stall_info() might overflow the

buffer if there is a huge difference in jiffies difference. The situation

might seem improbable, but computers sometimes get very confused about

time, which can result in full-sized integers, and, in this case,

buffer overflow.

Also, the unsigned jiffies difference is printed using %ld, which is

normally for signed integers. This is intentional for debugging purposes,

but it is not obvious from the code.

This commit therefore changes sprintf() to snprintf() and adds a

clarifying comment about intention of %ld format.

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/3758f7d9917bd7ef0482c4184c0ad673b4c4e069Refgit.kernel.org/stable/c/4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257Refgit.kernel.org/stable/c/9351e1338539cb7f319ffc1210fa9b2aa27384b5Refgit.kernel.org/stable/c/afb39909bfb5c08111f99e21bf5be7505f59ff1cRefgit.kernel.org/stable/c/e2228ed3fe7aa838fba87c79a76fb1ad9ea47138Refgit.kernel.org/stable/c/3758f7d9917bd7ef0482c4184c0ad673b4c4e069Refgit.kernel.org/stable/c/4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257Refgit.kernel.org/stable/c/9351e1338539cb7f319ffc1210fa9b2aa27384b5Refgit.kernel.org/stable/c/afb39909bfb5c08111f99e21bf5be7505f59ff1cRefgit.kernel.org/stable/c/e2228ed3fe7aa838fba87c79a76fb1ad9ea47138

How CyberStrike helps

Frequently asked questions

What is CVE-2024-38576?

CVE-2024-38576 is a high-severity vulnerability. It was published on June 19, 2024 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2024-38576?

This vulnerability has a CVSS 3.1 base score of 7.0, 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-2024-38576?

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-2024-38576?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-38576 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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