CVE-2010-3879 Path traversal in n/a

Medium 5.8 Published 22 Jan 2011 Updated 7 Aug 2024

Local attackers can exploit symlink vulnerabilities in FUSE to create arbitrary mtab entries and unmount any filesystem.

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-2010-3879?

CVE-2010-3879 is a medium-severity path traversal vulnerability in n/a, published on 22 Jan 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

FUSE, possibly 2.8.5 and earlier, allows local users to create mtab entries with arbitrary pathnames, and consequently unmount any filesystem, via a symlink attack on the parent directory of the mountpoint of a FUSE filesystem, a different vulnerability than CVE-2010-0789.

Weakness: CWE-59

Which versions are affected by CVE-2010-3879?

It affects 1 product.

Products include Libfuse Project Libfuse.

How do I fix CVE-2010-3879?

Apply the vendor's patch.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2010-3879 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-3879 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2010-3879, GHSA-9qwx-j72c-6hr4.