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ZDI-12-084 : RealNetworks RealPlayer RV10 Encoded Height/Width Remote Code Execution Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Wed, 6 Jun 2012 23:56:56 +0100

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ZDI-12-084 : RealNetworks RealPlayer RV10 Encoded Height/Width Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-084
June  6, 2012

- -- CVE ID:

CVE-2012-0926

- -- CVSS:

9, AV:N/AC:L/Au:N/C:P/I:P/A:C

- -- Affected Vendors:

RealNetworks

- -- Affected Products:

RealNetworks RealPlayer

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of RealNetworks RealPlayer. User interaction is
required in that a target must visit a malicious page or open a malicious
file. 

The flaw exists within the RV10 encoded data in the rv10.dll component.
When encountering an invalid encoded height or width field the process
miscalculates an offset while preparing to decode the data packets which
constitute the stream. The process attempts to store data at this location.
A remote attacker can exploit this vulnerability to execute arbitrary code
under the context of the process.

- -- Vendor Response:

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

http://service.real.com/realplayer/security/02062012_player/en/

- -- Disclosure Timeline:
2011-10-21 - Vulnerability reported to vendor
2012-06-06 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by:

* Dan Rosenberg of Virtual Security Research
* Luigi Auriemma

- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (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

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi

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