Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.0099 Realplayer vidplin.dll AVI Parsing Remote Code Execution Vulnerability 28 January 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Realplayer Publisher: Zero Day Initiative Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2010-4393 Original Bulletin: http://www.zerodayinitiative.com/advisories/ZDI-11-033/ - --------------------------BEGIN INCLUDED TEXT-------------------- Realplayer vidplin.dll AVI Parsing Remote Code Execution Vulnerability ZDI-11-033: January 27th, 2011 CVE ID CVE-2010-4393 CVSS Score 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) Affected Vendors RealNetworks Affected Products RealPlayer TippingPoint IPS Customer Protection TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10640. For further product information on the TippingPoint IPS: http://www.tippingpoint.com Vulnerability Details This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Realnetworks Realplayer SP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the vidplin.dll module. A buffer is allocated according to the user supplied length value. User supplied data is then copied into the allocated buffer, without verifying length, allowing the data to be written past the bounds of the previously allocated buffer. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the user running RealPlayer. Vendor Response RealNetworks has issued an update to correct this vulnerability. More details can be found at: http://service.real.com/realplayer/security/01272011_player/en/ Disclosure Timeline 2010-09-14 - Vulnerability reported to vendor 2011-01-27 - Coordinated public release of advisory Credit This vulnerability was discovered by: Juan Pablo Lopez Yacubian - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFNQjNw/iFOrG6YcBERAtIxAKCfGASYapL89heajsTCwE05zZjE5ACg1QPt f35c95SsQMRke4ALNl52Qlc= =65oS -----END PGP SIGNATURE-----