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                Linux-Mandrake Security Update Advisory

________________________________________________________________________



Package name: xpdf

Date: August 29th, 2000

Advisory ID: MDKSA-2000:041



Affected versions: 6.0, 6.1, 7.0, 7.1

________________________________________________________________________



Problem Description:



 There is a potential race condation when using tmpnam() and fopen() in

 xpdf versions prior to 0.91.  This exploit can be only used as root to

 overwrite arbitrary files if a symlink is created between the calls to

 tmpname() and fopen().  There is also a problem with malicious 

 URL-type links in PDF documents that contain quote characters which

 could also potentially be used to execute arbitrary commands.  This is

 due to xpdf calling system() with a netscape (or similar) command plus

 the URL.  The 0.91 release of xpdf fixes both of these potential

 problems.  Although there are no known exploits, users are encouraged

 to upgrade their system with these updates.

________________________________________________________________________



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 6.0:

db2848a72dc63c924d649d0cd08b57b5  6.0/RPMS/xpdf-0.91-2mdk.i586.rpm

a7e0a28dec18bf6b568aed6457b7d1d4  6.0/SRPMS/xpdf-0.91-2mdk.src.rpm



Linux-Mandrake 6.1:

37e41179955b5e36dcd873449274e57a  6.1/RPMS/xpdf-0.91-2mdk.i586.rpm

a7e0a28dec18bf6b568aed6457b7d1d4  6.1/SRPMS/xpdf-0.91-2mdk.src.rpm



Linux-Mandrake 7.0:

79ec9e813bd183a544ae439078f8326b  7.0/RPMS/xpdf-0.91-2mdk.i586.rpm

a7e0a28dec18bf6b568aed6457b7d1d4  7.0/SRPMS/xpdf-0.91-2mdk.src.rpm



Linux-Mandrake 7.1:

3bb4134dece9deb3190e1fbf0de0159d  7.1/RPMS/xpdf-0.91-3mdk.i586.rpm

8648f98a0a8927e039fddcb50b57eca8  7.1/SRPMS/xpdf-0.91-3mdk.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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