CVE-2024-0641 Kernel: deadlock leading to denial of service in tipc_crypto_key_revoke

Medium 5.5 Published Updated

Local users can trigger a deadlock in the Linux kernel TIPC subsystem, causing a system crash and denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-0641?

CVE-2024-0641 is a medium-severity denial of service vulnerability in Linux kernel, published on 17 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A denial of service vulnerability was found in tipc_crypto_key_revoke in net/tipc/crypto.c in the Linux kernel’s TIPC subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.

Weakness: CWE-667, CWE-833

Which versions are affected by CVE-2024-0641?

It affects 2 products.

Products include Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2024-0641?

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-2024-0641 being exploited?

There is no known exploitation of CVE-2024-0641 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-33888, BELL-CVE-2024-0641, DEBIAN-CVE-2024-0641, GHSA-x4v6-w9v4-p32j, UBUNTU-CVE-2024-0641.

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