CVE-2024-35937: linux kernel Out-of-bounds Read — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: check A-MSDU format more carefully If it looks like there's another subframe in the A-MSDU but the header isn't fully there, we can end up reading data out of bounds, only to discard later. Make this a bit more careful and check if the subframe header can even be present.

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CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 6.6.27
linux	linux_kernel	6.7 — 6.8.6

References

Advisories & Patches

https://git.kernel.org/stable/c/16da1e1dac23be45ef6e23c41b1508c400e6c544 https://git.kernel.org/stable/c/5d7a8585fbb31e88fb2a0f581b70667d3300d1e9 https://git.kernel.org/stable/c/9ad7974856926129f190ffbe3beea78460b3b7cc https://git.kernel.org/stable/c/9eb3bc0973d084423a6df21cf2c74692ff05647e https://git.kernel.org/stable/c/16da1e1dac23be45ef6e23c41b1508c400e6c544 https://git.kernel.org/stable/c/5d7a8585fbb31e88fb2a0f581b70667d3300d1e9 https://git.kernel.org/stable/c/9ad7974856926129f190ffbe3beea78460b3b7cc

Other References

https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-35937? +

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: check A-MSDU format more carefully If it looks like there's another subframe in the A-MSDU but the header isn't fully there, we can end up reading data out of bounds, only to discard later. Make this a bit more careful and check if the subframe header can even be present. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2024-35937? +

CVE-2024-35937 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-35937? +

CVE-2024-35937 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-2024-35937? +

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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