CVE-2011-3153 Path traversal in n/a

Low 1.9 Published Updated

Local attackers can read arbitrary files via symlink attacks on the user configuration file in LightDM.

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-2011-3153?

CVE-2011-3153 is a low-severity path traversal vulnerability in Canonical Ubuntu Linux, published on 6 Mar 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

dmrc.c in Light Display Manager (aka LightDM) before 1.1.1 allows local users to read arbitrary files via a symlink attack on ~/.dmrc.

Weakness: CWE-59

Which versions are affected by CVE-2011-3153?

It affects 2 products.

Products include Canonical Ubuntu Linux, Robert Ancell Lightdm.

How do I fix CVE-2011-3153?

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-2011-3153 being exploited?

There is no known exploitation of CVE-2011-3153 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2011-3153, GHSA-gc5f-r48c-j357.

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