CVE-2024-45018 netfilter: flowtable: initialise extack before use

Medium 5.5 Published Updated

A missing initialization in the Linux kernel netfilter flowtable can lead to a null pointer dereference, causing a system crash.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-45018?

CVE-2024-45018 is a medium-severity vulnerability in Linux kernel, published on 11 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: flowtable: initialise extack before use

Fix missing initialisation of extack in flow offload.

Weakness: CWE-665

Which versions are affected by CVE-2024-45018?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-45018?

Apply the vendor's patch.

Is CVE-2024-45018 being exploited?

There is no known exploitation of CVE-2024-45018 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-49206, AZL-49245, BELL-CVE-2024-45018, DEBIAN-CVE-2024-45018, GHSA-jrpv-cgg9-hfmj, UBUNTU-CVE-2024-45018.

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