CVE-2023-5972 Kernel: the nfta_inner_num and nfta_expr_name netlink attributes accessed without checking its presence in nft_inner.c

High 7.0 Published Updated

A local attacker can crash the system or escalate privileges due to a null pointer dereference in the Linux kernel's netfilter module.

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-2023-5972?

CVE-2023-5972 is a high-severity vulnerability in Fedoraproject Fedora, published on 23 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system.

Weakness: CWE-476

Which versions are affected by CVE-2023-5972?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2023-5972?

Apply the vendor's patch.

Is CVE-2023-5972 being exploited?

There is no known exploitation of CVE-2023-5972 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as AZL-32062, DEBIAN-CVE-2023-5972, GHSA-8jhq-62jp-gh72, UBUNTU-CVE-2023-5972.

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