Secunia Research: pfstools "readRadianceHeader()" Buffer Overflow Vulnerability

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                     Secunia Research 10/08/2007

  - pfstools "readRadianceHeader()" Buffer Overflow Vulnerability -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

pfstools 1.6.2

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Moderately critical
Impact: System access
Where:  From remote

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3) Vendor's Description of Software 

"pfstools package is a set of command line (and one GUI) programs for
reading, writing, manipulating and viewing high-dynamic range (HDR) images
and video frames".

Product Link:
http://www.mpi-inf.mpg.de/resources/pfstools/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in pfstools, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the
"readRadianceHeader()" function in src/fileformat/rgbeio.cpp, which
can be exploited to cause a stack-based buffer overflow by e.g. 
tricking a user into opening a specially crafted Radiance RGBE (*.hdr)
file.

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5) Solution 

Fixed in the CVS repository.

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6) Time Table 

09/08/2007 - Vendor notified.
09/08/2007 - Vendor response.
10/08/2007 - Public disclosure.

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7) Credits 

Discovered by Stefan Cornelius, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2007-2956 for the vulnerability.

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9) About Secunia

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2007-67/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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