Ubuntu 4.10 / 5.04 : bzip2 vulnerability (USN-161-1)

Ubuntu Security Notice (C) 2005-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

USN-158-1 fixed a command injection vulnerability in the 'zgrep'
utility. It was determined that the 'bzgrep' counterpart in the bzip2
package is vulnerable to the same flaw.

bzgrep 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 bzgrep was 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.

Solution :

Update the affected bzip2, libbz2-1.0 and / or libbz2-dev packages.

Risk factor :

Medium / CVSS Base Score : 4.6
(CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P)

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 20567 ()

Bugtraq ID:

CVE ID: CVE-2005-0758

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