USN-158-1: gzip utility vulnerability
1 August 2005
gzip vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.04
- Ubuntu 4.10
Software Description
Details
zgrep did not handle shell metacharacters like ‘|’ and ‘&’ properly when they occurred in input file names. This could be exploited to execute arbitrary commands with user privileges if zgrep is run in an untrusted directory with specially crafted file names.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 5.04
- gzip
- Ubuntu 4.10
- gzip
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.