CVE-2011-4324 Denial of service in n/a

Medium 4.9 Published Updated

Local users can crash the Linux kernel via a specific mknod call on NFSv4 filesystems, causing a 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-2011-4324?

CVE-2011-4324 is a medium-severity denial of service vulnerability in Linux kernel, published on 21 Jun 2012. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The encode_share_access function in fs/nfs/nfs4xdr.c in the Linux kernel before 2.6.29 allows local users to cause a denial of service (BUG and system crash) by using the mknod system call with a pathname on an NFSv4 filesystem.

Which versions are affected by CVE-2011-4324?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2011-4324?

Upgrade to a fixed version.

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-2011-4324 being exploited?

There is no known exploitation of CVE-2011-4324 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as GHSA-vh2w-j693-p426.

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