ZDI-08-047: RealNetworks RealPlayer rmoc3260 ActiveX Control Memory Corruption Vulnerability Jul 25 2008 09:27PM
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ZDI-08-047: RealNetworks RealPlayer rmoc3260 ActiveX Control Memory

Corruption Vulnerability


July 25, 2008

-- CVE ID:


-- Affected Vendors:


-- Affected Products:

RealNetworks RealPlayer

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability by Digital Vaccine protection filter ID 5834.

For further product information on the TippingPoint IPS, visit:


-- Vulnerability Details:

This vulnerability allows remote attackers to execute code on vulnerable

installations of RealPlayer. User interaction is required in that a user

must visit a malicious web site.

The specific flaw exists in the rmoc3260 ActiveX control exposed through

the following CLSIDs:










Specifying malicious values for the 'Controls' or 'Console' properties

with a specific timing results in a memory corruption which can lead to

code execution under the context of the current user.

-- Vendor Response:

RealNetworks has issued an update to correct this vulnerability. More

details can be found at:


-- Disclosure Timeline:

2008-02-07 - Vulnerability reported to vendor

2008-07-25 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by:

* Peter Vreugdenhil

-- 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:


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:


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