ZDI-10-008: RealNetworks RealPlayer SIPR Codec Remote Code Execution Vulnerability

ZDI-10-008: RealNetworks RealPlayer SIPR Codec Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-008
January 21, 2010

– CVE ID:
CVE-2009-4244

– 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 6514.
For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

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

The specific flaw exists during the parsing of SIPR codec fields.
Specifying a small length value can trigger an undersized heap
allocation. This buffer can then subsequently be overflowed. This
vulnerability can result in arbitrary code execution under the context
of the currently 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/01192010_player/en/

– Disclosure Timeline:
2008-05-12 - Vulnerability reported to vendor
2010-01-21 - Coordinated public release of advisory

– Credit:
This vulnerability was discovered by:
* Anonymous

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