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Alerts This Week
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Debian 3.0 DSA-371-1 Moderate: Perl CGI.pm Cross-Site Scripting Alert

debian
Calendar Grey August 11, 2003
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Debian Users should note a serious Cross-Site Scripting vulnerability in CGI.pm. Immediate update to version 4.43 or later is crucial for security.
A cross-site scripting vulnerability exists in the start_form()function in CGI.pm.

Summary

A cross-site scripting vulnerability exists in the start_form()
function in CGI.pm. This function outputs user-controlled data into
the action attribute of a form element without sanitizing it, allowing
a remote user to execute arbitrary web script within the context of
the generated page. Any program which uses this function in the
CGI.pm module may be affected.

For the current stable distribution (woody) this problem has been fixed
in version 5.6.1-8.3.

For the unstable distribution (sid) this problem has been fixed in
version 5.8.0-19.

We recommend that you update your perl package.

Upgrade Instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer t...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Package: perl

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