CVE-2013-5710 Security feature bypass in n/a

Low 3.7 Published 23 Sep 2013 Updated 6 Aug 2024

Local attackers with specific permissions can bypass access restrictions in FreeBSD nullfs by creating hardlinks across instances.

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-2013-5710?

CVE-2013-5710 is a low-severity vulnerability in Freebsd Freebsd, published on 23 Sep 2013. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.

Weakness: CWE-264

Which versions are affected by CVE-2013-5710?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2013-5710?

Apply the vendor's patch.

Is CVE-2013-5710 being exploited?

There is no known exploitation of CVE-2013-5710 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-62f8-63x5-qg6r.