Ubuntu Security Notice USN-158-1
1st August, 2005
gzip vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.04
- Ubuntu 4.10
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 version:
- Ubuntu 5.04:
- gzip
- Ubuntu 4.10:
- gzip
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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