RedHat: Updated 'xpdf' packages available
Posted by LinuxSecurity.com Team   
RedHat Linux There is a security problem when using tmpnam() and fopen() in versions prior to 0.91.
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                   Red Hat, Inc. Security Advisory

Synopsis:          xpdf bugfix release
Advisory ID:       RHSA-2000:060-03
Issue date:        2000-09-13
Updated on:        2000-09-13
Product:           Red Hat Linux
Keywords:          security problem in temporary file and malicious URL.
Cross references:  N/A
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1. Topic:

Security problem in temporary file and malicious URL.

2. Relevant releases/architectures:

Red Hat Linux 5.2 - i386, alpha, sparc
Red Hat Linux 6.2 - i386, alpha, sparc

3. Problem description:

There is a security problem when using tmpnam() and fopen() in versions
prior to 0.91. The problem is seen when a root user overwrites files
where a symlink is created between the calls to tmpname() and fopen().
 
There is also a problem with URL-type links in PDF documents that contain
quote characters which could also be used to execute arbitrary commands.
 
The xpdf-0.91 fixes both these security problems.

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

5. Bug IDs fixed  (http://bugzilla.Red Hat.com/bugzilla for more info):

N/A

6. RPMs required:

Red Hat Linux 5.2:

sparc: 
ftp://updates.Red Hat.com/5.2/sparc/xpdf-0.91-1.5x.sparc.rpm

alpha: 
ftp://updates.Red Hat.com/5.2/alpha/xpdf-0.91-1.5x.alpha.rpm

i386: 
ftp://updates.Red Hat.com/5.2/i386/xpdf-0.91-1.5x.i386.rpm

sources: 
ftp://updates.Red Hat.com/5.2/SRPMS/xpdf-0.91-1.5x.src.rpm

Red Hat Linux 6.2:

sparc: 
ftp://updates.Red Hat.com/6.2/sparc/xpdf-0.91-1.6x.sparc.rpm

alpha: 
ftp://updates.Red Hat.com/6.2/alpha/xpdf-0.91-1.6x.alpha.rpm

i386: 
ftp://updates.Red Hat.com/6.2/i386/xpdf-0.91-1.6x.i386.rpm

sources: 
ftp://updates.Red Hat.com/6.2/SRPMS/xpdf-0.91-1.6x.src.rpm

7. Verification:

MD5 sum                           Package Name
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1ca613dc77206c3529dab585e6f4fffd  5.2/SRPMS/xpdf-0.91-1.5x.src.rpm
20632cc51819d8a277636bc7e72041ea  5.2/alpha/xpdf-0.91-1.5x.alpha.rpm
da4bfce20f17967f03697f7a141a7883  5.2/i386/xpdf-0.91-1.5x.i386.rpm
1707cdcbe06867e9d927c7c150b856e6  5.2/sparc/xpdf-0.91-1.5x.sparc.rpm
54136dd475eeea9f24bf0f7a1eb2d5d9  6.2/SRPMS/xpdf-0.91-1.6x.src.rpm
db42b309ce51cf80661b1ea43141328b  6.2/alpha/xpdf-0.91-1.6x.alpha.rpm
7a00ef826fa8f5fa37246a78f4ddcc4a  6.2/i386/xpdf-0.91-1.6x.i386.rpm
8f442274085c2bb45c72f2920d4027d3  6.2/sparc/xpdf-0.91-1.6x.sparc.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
     http://www.Red Hat.com/corp/contact.html

You can verify each package with the following command:
    rpm --checksig  

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg 

8. References:
 
http://www.securityfocus.com/archive/1/79421


Copyright(c) 2000 Red Hat, Inc.