CVE-2024-27016 netfilter: flowtable: validate pppoe header

What is CVE-2024-27016?

CVE-2024-27016 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: flowtable: validate pppoe header

Ensure there is sufficient room to access the protocol field of the PPPoe header. Validate it once before the flowtable lookup, then use a helper function to access protocol field.

Which versions are affected by CVE-2024-27016?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2024-27016?

Apply the vendor's patch.

Is CVE-2024-27016 being exploited?

There is no known exploitation of CVE-2024-27016 in the wild and no public exploit code.

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• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as AZL-42198, BELL-CVE-2024-27016, DEBIAN-CVE-2024-27016, GHSA-gjj3-fh9w-h2f7, UBUNTU-CVE-2024-27016.