ZDI-10-212: RealNetworks RealPlayer RJMDSections Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-212
October 15, 2010

-- CVE ID:
CVE-2010-3750

-- CVSS:
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)

-- Affected Vendors:
RealNetworks

-- Affected Products:
RealNetworks RealPlayer

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10060.
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- 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 open a malicious website or media file.

The specific flaw exists within the code responsible for parsing Name
Value Property (NVP) elements from within logical streams in a
RealPlayer media file. Specifically, a function within the rjrmrpln.dll
file allocates a buffer on the heap which can be directly influenced
from data within the file. This buffer is then written to using another
value defined in the file and thus also controlled. By crafting a
malicious media file an attacker can abuse this to execute arbitrary
code under the context of the user running the player.

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

http://service.real.com/realplayer/security/10152010_player/en/

-- Disclosure Timeline:
2010-02-02 - Vulnerability reported to vendor
2010-10-15 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Sebastian Apelt  (www.siberas.de)

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