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Mandrake: 'xpdf' update Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Mandrake There is a potential race condation when using tmpnam() and fopen() in xpdf versions prior to 0.91.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

________________________________________________________________________

                Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name:           xpdf
Date:                   September 25th, 2000
Advisory ID:            MDKSA-2000:041-1

Affected versions:      6.0, 6.1, 7.0
________________________________________________________________________

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.

Update:

 There was an incorrect dependancy on the t1lib package in the previous
 updates for xpdf for Linux-Mandrake 6.x and 7.0.  This update resolves
 those dependancy issues.
________________________________________________________________________

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:
9210a209bbd52854078e77c5edc35158  6.0/RPMS/xpdf-0.91-4mdk.i586.rpm
305a3ed2da20108baf16ce716e4f56f0  6.0/SRPMS/xpdf-0.91-4mdk.src.rpm

Linux-Mandrake 6.1:
552d48f5053ad5f348df823cb759a8c9  6.1/RPMS/xpdf-0.91-4mdk.i586.rpm
305a3ed2da20108baf16ce716e4f56f0  6.1/SRPMS/xpdf-0.91-4mdk.src.rpm

Linux-Mandrake 7.0:
8a8bca08989416014a2c91bac79eddc5  7.0/RPMS/xpdf-0.91-4mdk.i586.rpm
305a3ed2da20108baf16ce716e4f56f0  7.0/SRPMS/xpdf-0.91-4mdk.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:
   ftp://ftp.linux.tucows.com/pub/distributions/Mandrake/Mandrake/updates
   ftp://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
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team 
  <security@linux-mandrake.com>


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