Red Hat: 'icecast' format string vulnerability
Posted by LinuxSecurity.com Team   
RedHat Linux There is a format string vulnerability in icecast that can allow a remote user to execute arbitrary code.

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                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          String format vulnerability in icecast
Advisory ID:       RHSA-2001:004-04
Issue date:        2001-01-23
Updated on:        2001-01-24
Product:           Red Hat Powertools
Keywords:          
Cross references:  
Obsoletes:         
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1. Topic:

A remote vulnerablity allows execution of arbitrary code.

2. Relevant releases/architectures:

Red Hat Powertools 6.0 - alpha, i386, sparc

Red Hat Powertools 6.1 - alpha, i386, sparc

Red Hat Powertools 6.2 - alpha, i386, sparc

Red Hat Powertools 7.0 - alpha, i386

3. Problem description:

A string format vulnerability that allows the execution of arbitrary
commands exists in all versions of icecast. A patch was posted to Bugtraq
to solve the problem and has been incorporated into this update. All users
of icecast should apply this update.

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):



6. RPMs required:

Red Hat Powertools 6.0:

SRPMS: 
ftp://updates.Red Hat.com/powertools/6.0/SRPMS/icecast-1.3.8.beta2-2.src.rpm

alpha: 
ftp://updates.Red Hat.com/powertools/6.0/alpha/icecast-1.3.8.beta2-2.alpha.rpm

i386: 
ftp://updates.Red Hat.com/powertools/6.0/i386/icecast-1.3.8.beta2-2.i386.rpm

sparc: 
ftp://updates.Red Hat.com/powertools/6.0/sparc/icecast-1.3.8.beta2-2.sparc.rpm

Red Hat Powertools 6.1:

SRPMS: 
ftp://updates.Red Hat.com/powertools/6.1/SRPMS/icecast-1.3.8.beta2-2.src.rpm

alpha: 
ftp://updates.Red Hat.com/powertools/6.1/alpha/icecast-1.3.8.beta2-2.alpha.rpm

i386: 
ftp://updates.Red Hat.com/powertools/6.1/i386/icecast-1.3.8.beta2-2.i386.rpm

sparc: 
ftp://updates.Red Hat.com/powertools/6.1/sparc/icecast-1.3.8.beta2-2.sparc.rpm

Red Hat Powertools 6.2:

SRPMS: 
ftp://updates.Red Hat.com/powertools/6.2/SRPMS/icecast-1.3.8.beta2-2.src.rpm

alpha: 
ftp://updates.Red Hat.com/powertools/6.2/alpha/icecast-1.3.8.beta2-2.alpha.rpm

i386: 
ftp://updates.Red Hat.com/powertools/6.2/i386/icecast-1.3.8.beta2-2.i386.rpm

sparc: 
ftp://updates.Red Hat.com/powertools/6.2/sparc/icecast-1.3.8.beta2-2.sparc.rpm

Red Hat Powertools 7.0:

SRPMS: 
ftp://updates.Red Hat.com/powertools/7.0/SRPMS/icecast-1.3.8.beta2-3.src.rpm

alpha: 
ftp://updates.Red Hat.com/powertools/7.0/alpha/icecast-1.3.8.beta2-3.alpha.rpm

i386: 
ftp://updates.Red Hat.com/powertools/7.0/i386/icecast-1.3.8.beta2-3.i386.rpm



7. Verification:

MD5 sum                           Package Name
--------------------------------------------------------------------------
6e10a41120782afa633229384a3de9f5  6.0/SRPMS/icecast-1.3.8.beta2-2.src.rpm
feba1b51874808c6d59eae717adc116d  6.0/alpha/icecast-1.3.8.beta2-2.alpha.rpm
17f5ed6b597b38456faff7e8bd1eb828  6.0/i386/icecast-1.3.8.beta2-2.i386.rpm
e8c06fc3348e60a3053e7fad06dedeec  6.0/sparc/icecast-1.3.8.beta2-2.sparc.rpm
6e10a41120782afa633229384a3de9f5  6.1/SRPMS/icecast-1.3.8.beta2-2.src.rpm
feba1b51874808c6d59eae717adc116d  6.1/alpha/icecast-1.3.8.beta2-2.alpha.rpm
17f5ed6b597b38456faff7e8bd1eb828  6.1/i386/icecast-1.3.8.beta2-2.i386.rpm
e8c06fc3348e60a3053e7fad06dedeec  6.1/sparc/icecast-1.3.8.beta2-2.sparc.rpm
6e10a41120782afa633229384a3de9f5  6.2/SRPMS/icecast-1.3.8.beta2-2.src.rpm
feba1b51874808c6d59eae717adc116d  6.2/alpha/icecast-1.3.8.beta2-2.alpha.rpm
17f5ed6b597b38456faff7e8bd1eb828  6.2/i386/icecast-1.3.8.beta2-2.i386.rpm
e8c06fc3348e60a3053e7fad06dedeec  6.2/sparc/icecast-1.3.8.beta2-2.sparc.rpm
417343d579a7067720300adc8c99b38d  7.0/SRPMS/icecast-1.3.8.beta2-3.src.rpm
b728ad07c46c37221e98d5ee905efb2d  7.0/alpha/icecast-1.3.8.beta2-3.alpha.rpm
9fc78917546ab1bc41fb9951d47bf749  7.0/i386/icecast-1.3.8.beta2-3.i386.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:

Thanks to |CyRaX| <cyrax@pkcrew.org> for finding the problem and posting it
to Bugtraq. For more information please see 
http://www.securityfocus.com/vdb/bottom.html?vid=2264


Copyright(c) 2000, 2001 Red Hat, Inc.