CVE-2011-0543 Path traversal in n/a

Low 3.3 Published Updated

Local attackers can bypass access restrictions to unmount arbitrary directories via symlink attacks in legacy FUSE configurations.

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-2011-0543?

CVE-2011-0543 is a low-severity path traversal vulnerability in n/a, published on 2 Sep 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Certain legacy functionality in fusermount in fuse 2.8.5 and earlier, when util-linux does not support the --no-canonicalize option, allows local users to bypass intended access restrictions and unmount arbitrary directories via a symlink attack.

Weakness: CWE-264

Which versions are affected by CVE-2011-0543?

It affects 1 product.

Products include Fuse Fuse.

How do I fix CVE-2011-0543?

Upgrade to a fixed version.

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

Is CVE-2011-0543 being exploited?

There is no known exploitation of CVE-2011-0543 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-0543, GHSA-2g2x-4qqh-7m58.

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