CVE-2008-4307 Race condition in n/a

Medium 4.0 Published Updated

Local attackers can crash the Linux kernel via a race condition in NFS file locking, requiring kernel upgrades to mitigate.

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-2008-4307?

CVE-2008-4307 is a medium-severity vulnerability in Linux kernel, published on 13 Jan 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Race condition in the do_setlk function in fs/nfs/file.c in the Linux kernel before 2.6.26 allows local users to cause a denial of service (crash) via vectors resulting in an interrupted RPC call that leads to a stray FL_POSIX lock, related to improper handling of a race between fcntl and close in the EINTR case.

Weakness: CWE-362

Which versions are affected by CVE-2008-4307?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2008-4307?

Upgrade to a fixed version.

Is CVE-2008-4307 being exploited?

There is no known exploitation of CVE-2008-4307 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as GHSA-rjfh-5x67-p59h.

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