Ubuntu 4.10 / 5.04 : gzip vulnerability (USN-158-1)

Medium Nessus Plugin ID 20562


The remote Ubuntu host is missing a security-related patch.


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.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected gzip package.

Plugin Details

Severity: Medium

ID: 20562

File Name: ubuntu_USN-158-1.nasl

Version: $Revision: 1.12 $

Type: local

Agent: unix

Published: 2006/01/15

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:gzip, cpe:/o:canonical:ubuntu_linux:4.10, cpe:/o:canonical:ubuntu_linux:5.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Patch Publication Date: 2005/08/01

Reference Information

CVE: CVE-2005-0758

USN: 158-1