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Secunia Research: RealPlayer SWF Frame Handling Buffer Overflow

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                     Secunia Research 25/07/2008

   - RealNetworks RealPlayer SWF Frame Handling 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 

RealNetworks RealPlayer Version 10.5 Build 6.0.12.1483

NOTE: Other versions may also be affected.

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2) Severity 

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

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3) Vendor's Description of Software 

"Download Web video instantly".

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

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4) Description of Vulnerability

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

The vulnerability is caused due to a design error within the handling
of frames in Shockwave Flash (SWF) files and can be exploited to cause
a heap-based buffer overflow.

Successful exploitation may allow execution of arbitrary code.

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5) Solution 

The vulnerability is fixed in an upcoming release.

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6) Time Table 

16/11/2007 - Vendor notified.
22/11/2007 - Vendor notified again.
26/11/2007 - Vendor response and request PoC.
29/11/2007 - Sent PoC to vendor.
03/01/2008 - Confirmation that vendor able to reproduce vulnerability.
27/05/2008 - Requested update from vendor.
07/07/2008 - Vendor confirms update is pending.
23/07/2008 - Vendor confirms disclosure date.
25/07/2008 - Public disclosure.

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7) Credits 

Discovered by Dyon Balding, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2007-5400 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below 
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/ 

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2007-93/

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

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