ZDI-07-063: RealPlayer RA Field Size File Processing Heap Oveflow 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-063.html
October 25, 2007

-- CVE ID:
CVE-2007-2264

-- Affected Vendor:
RealNetworks RealPlayer version 10.5 

-- Affected Products:
RealPlayer 6.x

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April 26, 2007 by Digital Vaccine protection
filter ID 5214. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows remote attackers to execute code on vulnerable
installations of RealPlayer.  User interaction is required in that a
user must open a malicious .ra/.ram file or visit a malicious web
site.

The specific flaw exists during the parsing of files with improperly
defined size field in the RA header. Specifying a large unsigned value
data can trigger a heap corruption and further result in arbitrary code
execution under the context of the logged in user.

-- Vendor Response:
RealNetworks has issued an update to correct this vulnerability. More
details can be found at:

   http://service.real.com/realplayer/security/10252007_player/en/

-- Disclosure Timeline:
2007.02.16 - Vulnerability reported to vendor
2007.04.26 - Digital Vaccine released to TippingPoint customers
2007.10.25 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by an anonymous researcher.

-- About the Zero Day Initiative (ZDI):
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(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

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