CVE-2024-50185 mptcp: handle consistently DSS corruption

High 8.2 Published Updated

A remote attacker can cause a denial of service in the Linux kernel by sending corrupted MPTCP DSS options, triggering warnings and potential instability.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2024-50185?

CVE-2024-50185 is a high-severity denial of service vulnerability in Linux kernel, published on 8 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

mptcp: handle consistently DSS corruption

Bugged peer implementation can send corrupted DSS options, consistently hitting a few warning in the data path. Use DEBUG_NET assertions, to avoid the splat on some builds and handle consistently the error, dumping related MIBs and performing fallback and/or reset according to the subflow type.

Which versions are affected by CVE-2024-50185?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-50185?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-50185 being exploited?

There is no known exploitation of CVE-2024-50185 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-50185, DEBIAN-CVE-2024-50185, GHSA-q7m5-gh3m-8v66, UBUNTU-CVE-2024-50185.

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