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                Linux-Mandrake Security Update Advisory

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Package name: xchat

Date: August 24th, 2000

Advisory ID: MDKSA-2000:039



Affected versions: 7.1

________________________________________________________________________



Problem Description:



 XChat 1.3.9 and later allow users to right-click on a URL appearing in 

 an IRC discussion and select the "Open in Browser" option.  To open the 

 URL in a browser, XChat passes the command to /bin/sh.  This allows a 

 malicious URL the ability to execute arbitrary shell commands as the

 user that is running XChat.  This update changes the functionality of

 XChat to bypass the shell and execute the browser directly.  Thanks go

 to Red Hat for providing the patch.

________________________________________________________________________



Please verify these md5 checksums of the updates prior to upgrading to

ensure the integrity of the downloaded package.  You can do this by

running the md5sum program on the downloaded package by using

"md5sum package.rpm".



Linux-Mandrake 7.1:

ebf0d4a0d236453f63a797ea20f0758b  7.1/RPMS/xchat-1.4.1-4mdk.i586.rpm

d695396fb97a55c6c7e2cdbb22079c00  7.1/SRPMS/xchat-1.4.1-4mdk.src.rpm

________________________________________________________________________



To upgrade automatically, use « MandrakeUpdate ».  



If you want to upgrade manually, download the updated package from one 

of our FTP server mirrors and uprade with "rpm -Uvh package_name".  



You can download the updates directly from:

  http://ftp.linux.tucows.com/pub/distributions/Mandrake/Mandrake/updates

  http://ftp.free.fr/pub/Distributions_Linux/Mandrake/updates



Or try one of the other mirrors listed at:



  http://www.linux-mandrake.com/en/ftp.php3.  



Updated packages are available in the "updates/[ver]/RPMS/" directory.  

For example, if you are looking for an updated RPM package for

Linux-Mandrake 7.1, look for it in "updates/7.1/RPMS/".  Updated source

RPMs are available as well, but you generally do not need to download

them.



Please be aware that sometimes it takes the mirrors a few hours to 

update, so if you want an immediate upgrade, please use one of the two 

above-listed mirrors.



You can view other security advisories for Linux-Mandrake at:



  http://www.linux-mandrake.com/en/fupdates.php3



If you want to report vulnerabilities, please contact



  security@linux-mandrake.com

________________________________________________________________________



Linux-Mandrake has two security-related mailing list services that 

anyone can subscribe to:



security-announce@linux-mandrake.com



  Linux-Mandrake's security announcements mailing list.  Only 

  announcements are sent to this list and it is read-only.



security-discuss@linux-mandrake.com



  Linux-Mandrake's security discussion mailing list.  This list is open

  to anyone to discuss Linux-Mandrake security specifically and Linux

  security in general.



To subscribe to either list, send a message to

  sympa@linux-mandrake.com

with "subscribe [listname]" in the body of the message.



To remove yourself from either list, send a message to

  sympa@linux-mandrake.com

with "unsubscribe [listname]" in the body of the message.



To get more information on either list, send a message to

  sympa@linux-mandrake.com

with "info [listname]" in the body of the message.



Optionally, you can use the web interface to subscribe to or unsubscribe

from either list:



  http://www.linux-mandrake.com/en/flists.php3#security

________________________________________________________________________



Type Bits/KeyID     Date       User ID

pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team 

  





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