CVE-2024-27017 netfilter: nft_set_pipapo: walk over current view on netlink dump

What is CVE-2024-27017?

CVE-2024-27017 is a high-severity vulnerability in Fedoraproject Fedora, published on 1 May 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: nft_set_pipapo: walk over current view on netlink dump

The generation mask can be updated while netlink dump is in progress. The pipapo set backend walk iterator cannot rely on it to infer what view of the datastructure is to be used. Add notation to specify if user wants to read/update the set.

Based on patch from Florian Westphal.

Which versions are affected by CVE-2024-27017?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2024-27017?

Apply the vendor's patch.

Is CVE-2024-27017 being exploited?

There is no known exploitation of CVE-2024-27017 in the wild and no public exploit code.

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• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
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All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as AZL-42163, BELL-CVE-2024-27017, DEBIAN-CVE-2024-27017, GHSA-qhh4-wrfh-w5pg, UBUNTU-CVE-2024-27017.