CVE-2024-27048: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcm80211: handle pmk_op allocation failure The kzalloc() in brcmf_pmksa_v3_op() will return null if the physical memory has run out. As a result, if we dereference the null value, the null pointer dereference bug will happen. Return -ENOMEM from brcmf_pmksa_v3_op() if kzalloc() fails for pmk_op.

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CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.4 — 6.6.23
linux	linux_kernel	6.7 — 6.7.11
linux	linux_kernel	6.8 — 6.8.2

References

Advisories & Patches

https://git.kernel.org/stable/c/6138a82f3bccfc67ed7ac059493579fc326c02e5 https://git.kernel.org/stable/c/9975908315c13bae2f2ed5ba92870fa935180b0e https://git.kernel.org/stable/c/b4152222e04cb8afeeca239c90e3fcaf4c553b42 https://git.kernel.org/stable/c/df62e22c2e27420e8990a4f09e30d7bf56c2036f https://git.kernel.org/stable/c/6138a82f3bccfc67ed7ac059493579fc326c02e5 https://git.kernel.org/stable/c/9975908315c13bae2f2ed5ba92870fa935180b0e https://git.kernel.org/stable/c/b4152222e04cb8afeeca239c90e3fcaf4c553b42 https://git.kernel.org/stable/c/df62e22c2e27420e8990a4f09e30d7bf56c2036f

Frequently Asked Questions

What is CVE-2024-27048? +

In the Linux kernel, the following vulnerability has been resolved: wifi: brcm80211: handle pmk_op allocation failure The kzalloc() in brcmf_pmksa_v3_op() will return null if the physical memory has run out. As a result, if we dereference the null value, the null pointer dereference bug will happen. Return -ENOMEM from brcmf_pmksa_v3_op() if kzalloc() fails for pmk_op. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27048? +

CVE-2024-27048 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-27048? +

CVE-2024-27048 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-2024-27048? +

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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