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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Detailed Explanation for this Vulnerability Assessment
The developers of Gaim, an instant messenger client that combines
several different networks, found a vulnerability in the hyperlink
handling code. The 'Manual' browser command passes an untrusted
string to the shell without escaping or reliable quoting, permitting
a possible hacker to execute arbitrary commands on the users machine.
Unfortunately, Gaim doesn't display the hyperlink before the user
clicks on it. Users who use other inbuilt browser commands aren't
This problem has been fixed in version 0.58-2.2 for the current
stable distribution (woody) and in version 0.59.1-2 for the unstable
distribution (sid). The old stable distribution (potato) is not
affected since it doesn't ship the Gaim program.
The fixed version of Gaim no longer passes the user's manual browser
command to the shell. Commands which contain the %s in quotes will
need to be amended, so they don't contain any quotes. The 'Manual'
browser command can be edited in the 'General' pane of the
'Preferences' dialog, which can be accessed by clicking 'Options' from
the login window, or 'Tools' and then 'Preferences' from the menu bar
in the buddy list window.
We recommend that you upgrade your gaim package immediately.
Solution : http://www.debian.org/security/2002/dsa-158
Network Security Threat Level: High
Networks Security ID: 5574
Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi
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