CVE-2024-39504: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_inner: validate mandatory meta and payload Check for mandatory netlink attributes in payload and meta expression when used embedded from the inner expression, otherwise NULL pointer dereference is possible from userspace.

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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	6.2 — 6.6.35
linux	linux_kernel	6.7 — 6.9.6
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/39323f54cad29602917848346c71b087da92a19d https://git.kernel.org/stable/c/b30669fdea0ca03aa22995e6c99f7e7d9dee89ff https://git.kernel.org/stable/c/c4ab9da85b9df3692f861512fe6c9812f38b7471 https://git.kernel.org/stable/c/39323f54cad29602917848346c71b087da92a19d https://git.kernel.org/stable/c/b30669fdea0ca03aa22995e6c99f7e7d9dee89ff https://git.kernel.org/stable/c/c4ab9da85b9df3692f861512fe6c9812f38b7471

Frequently Asked Questions

What is CVE-2024-39504? +

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_inner: validate mandatory meta and payload Check for mandatory netlink attributes in payload and meta expression when used embedded from the inner expression, otherwise NULL pointer dereference is possible from userspace. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-39504? +

CVE-2024-39504 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-2024-39504? +

CVE-2024-39504 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-2024-39504? +

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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