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                     Secunia Research 03/03/2009

     - libsndfile CAF Processing Integer 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 

* libsndfile version 1.0.18

NOTE: Prior versions may also be affected.

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2) Severity 

Rating: Highly critical 
Impact: System access
Where:  Remote

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3) Vendor's Description of Software 

"Libsndfile is a C library for reading and writing files containing 
sampled sound (such as MS Windows WAV and the Apple/SGI AIFF format) 
through one standard library interface."

Product Link:
http://www.mega-nerd.com/libsndfile/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in libsndfile, which 
can be exploited by malicious people to compromise an application 
using the library.

The vulnerability is caused due to an integer overflow error in the 
processing of CAF description chunks. This can be exploited to cause 
a heap-based buffer overflow by tricking the user into processing a
specially crafted CAF audio file.

Successful exploitation may allow execution of arbitrary code.

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5) Solution 

Update to version 1.0.19.

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6) Time Table 

20/02/2009 - Vendor notified.
21/02/2009 - Vendor response.
03/03/2009 - Public disclosure.

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7) Credits 

Discovered by Alin Rad Pop, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2009-0186 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/2009-7/

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

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