CVE-2024-50131: linux kernel Buffer Overflow — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Consider the NULL character when validating the event length strlen() returns a string length excluding the null byte. If the string length equals to the maximum buffer length, the buffer will have no space for the NULL terminating character. This commit checks this condition and returns failure for it.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.1 — 5.15.170
linux	linux_kernel	5.16 — 6.1.115
linux	linux_kernel	6.2 — 6.6.59
linux	linux_kernel	6.7 — 6.11.6
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0b6e2e22cb23105fcb171ab92f0f7516c69c8471 https://git.kernel.org/stable/c/5fd942598ddeed9a212d1ff41f9f5b47bcc990a7 https://git.kernel.org/stable/c/a14a075a14af8d622c576145455702591bdde09d https://git.kernel.org/stable/c/b86b0d6eea204116e4185acc35041ca4ff11a642 https://git.kernel.org/stable/c/f4ed40d1c669bba1a54407d8182acdc405683f29

Other References

https://git.kernel.org/stable/c/02874ca52df2ca2423ba6122039315ed61c25972 https://git.kernel.org/stable/c/5e3231b352725ff4a3a0095e6035af674f2d8725 https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html https://cert-portal.siemens.com/productcert/html/ssa-265688.html

Frequently Asked Questions

What is CVE-2024-50131? +

In the Linux kernel, the following vulnerability has been resolved: tracing: Consider the NULL character when validating the event length strlen() returns a string length excluding the null byte. If the string length equals to the maximum buffer length, the buffer will have no space for the NULL terminating character. This commit checks this condition and returns failure for it. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-50131? +

CVE-2024-50131 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-50131? +

CVE-2024-50131 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-50131? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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