CVE-2023-6622 Kernel: null pointer dereference vulnerability in nft_dynset_init()

What is CVE-2023-6622?

CVE-2023-6622 is a medium-severity vulnerability in Fedoraproject Fedora, published on 8 Dec 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 vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.

Weakness: CWE-476

Which versions are affected by CVE-2023-6622?

It affects 3 products.

Products include Fedoraproject Fedora, Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2023-6622?

Apply the vendor's patch.

Is CVE-2023-6622 being exploited?

There is no known exploitation of CVE-2023-6622 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-32172, BELL-CVE-2023-6622, DEBIAN-CVE-2023-6622, GHSA-cjq9-mv23-7rh6, UBUNTU-CVE-2023-6622.