CVE-2022-0433 Null dereference in kernel

What is CVE-2022-0433?

CVE-2022-0433 is a medium-severity vulnerability in Fedoraproject Fedora, published on 9 Mar 2022. 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 Linux kernel's BPF subsystem in the way a user triggers the map_get_next_key function of the BPF bloom filter. This flaw allows a local user to crash the system. This flaw affects Linux kernel versions prior to 5.17-rc1.

Weakness: CWE-476, CWE-908

Which versions are affected by CVE-2022-0433?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2022-0433?

Upgrade to a fixed version.

Is CVE-2022-0433 being exploited?

There is no known exploitation of CVE-2022-0433 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-8996, GHSA-rqh7-q69f-f8vq, UBUNTU-CVE-2022-0433.