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Linux-Mandrake Security Update Advisory: xpdf update

Aug 30, 2000, 19:20 (0 Talkback[s])

Date: Tue, 29 Aug 2000 17:22:20 -0600
From: Linux Mandrake Security Team security@LINUX-MANDRAKE.COM
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: MDKSA-2000:041 - xpdf update


                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:
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


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