CVE-2011-4089 Race condition in n/a

Medium 4.6 Published 16 Apr 2014 Updated 6 Aug 2024

Local attackers can execute arbitrary code by exploiting a race condition in bzexe temporary file handling, requiring local access.

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-2011-4089?

CVE-2011-4089 is a medium-severity vulnerability in n/a, published on 16 Apr 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The bzexe command in bzip2 1.0.5 and earlier generates compressed executables that do not properly handle temporary files during extraction, which allows local users to execute arbitrary code by precreating a temporary directory.

Weakness: CWE-264

Which versions are affected by CVE-2011-4089?

It affects 1 product.

Products include Bzip Bzip2.

How do I fix CVE-2011-4089?

Upgrade to a fixed version.

Is CVE-2011-4089 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4089 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2011-4089, GHSA-f3fh-cjxj-26mw.