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                     Secunia Research 18/10/2010

       - RealPlayer QCP Sample Chunk Parsing Buffer Overflow -

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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 

* RealPlayer SP 1.0.5

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

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3) Vendor's Description of Software 

"RealPlayer SP lets you download video from thousands of Websites – 
free! Just click on the "download this video" button above the video 
you want. It's just that easy. Now you can watch your favorite videos 
anywhere, anytime."

Product Link:
http://www.real.com/realplayer/

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4) Description of Vulnerability

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

The vulnerability is caused by missing input validation in the 
handling of sample chunks when parsing QCP audio content. This can be 
exploited to cause a heap-based buffer overflow.

Successful exploitation may allow execution of arbitrary code.

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5) Solution 

Update to RealPlayer SP 1.1.5 or RealPlayer Enterprise 2.1.3.

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6) Time Table 

25/02/2010 - Vendor notified.
11/03/2010 - Vendor provides status update.
17/08/2010 - Vendor provides status update.
30/09/2010 - Vendor provides status update.
08/10/2010 - Vendor provides status update.
18/10/2010 - Public disclosure.

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7) Credits 

Discovered by Carsten Eiram, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2010-2578 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/2010-13/

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

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