Advisories
RealPlayer vidplin.dll AVI Processing Heap Overflow
Release Date:
June 23, 2005
Date Reported:
May 4, 2005
Patch Development Time (In Days):
Severity:
High (Remote Code Execution)
Vendor:
RealNetworks
Systems Affected:
Versions running on Microsoft Windows
RealPlayer 10.5 (6.0.12.1040-1069)
RealPlayer 10
RealOne Player v2
RealOne Player v1
RealPlayer 8
RealPlayer Enterprise
Overview:
eEye Digital Security has discovered a critical vulnerability in RealPlayer. The vulnerability allows a remote attacker to reliably overwrite heap memory with arbitrary data and execute arbitrary code in the context of the user who executed the player.
This specific flaw exists within the vidplin.dll file used by RealPlayer. By specially crafting a malformed .avi movie file, a direct heap overwrite is triggered, and reliable code execution is then possible. This vulnerability can be triggered when a user views a webpage, or opens an .avi file via email, instant messenger, or other common file transfer programs.
Technical Details:
When processing AVI files RealPlayer calls upon a specific DLL, vidplin.dll, where the vulnerability lies. Realplayer relies on a strf structure value and allocates a fixed memory space of 0x428 that can be overflowed with values greater than the fixed buffer size causing arbitrary code to be executed.
Protection:
Retina Network Security Scanner has been updated to identify this vulnerability.
Blink - Endpoint Vulnerability Prevention - preemptively protects from this vulnerability.
Vendor Status:
RealNetworks has released a patch for this vulnerability.
Credit:
Discovery: Fang Xing
Related Links:
Retina Network Security Scanner - Free Trial
Blink Endpoint Vulnerability Prevention - Free Trial
Retina Network Security Scanner - Japanese Edition- http://www.sse.co.jp/eeye/index.html
Copyright (c) 1998-2008 eEye Digital Security
Permission is hereby granted for the redistribution of this alert electronically. It is not to be edited in any way without express consent of eEye. If you wish to reprint the whole or any part of this alert in any other medium excluding electronic medium, please email alert@eEye.com for permission.
Disclaimer
The information within this paper may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are no warranties, implied or express, with regard to this information. In no event shall the author be liable for any direct or indirect damages whatsoever arising out of or in connection with the use or spread of this information. Any use of this information is at the user's own risk.
June 23, 2005
Date Reported:
May 4, 2005
Patch Development Time (In Days):
 |
|
|
|
| 50 |
Severity:
High (Remote Code Execution)
Vendor:
RealNetworks
Systems Affected:
Versions running on Microsoft Windows
RealPlayer 10.5 (6.0.12.1040-1069)
RealPlayer 10
RealOne Player v2
RealOne Player v1
RealPlayer 8
RealPlayer Enterprise
Overview:
eEye Digital Security has discovered a critical vulnerability in RealPlayer. The vulnerability allows a remote attacker to reliably overwrite heap memory with arbitrary data and execute arbitrary code in the context of the user who executed the player.
This specific flaw exists within the vidplin.dll file used by RealPlayer. By specially crafting a malformed .avi movie file, a direct heap overwrite is triggered, and reliable code execution is then possible. This vulnerability can be triggered when a user views a webpage, or opens an .avi file via email, instant messenger, or other common file transfer programs.
Technical Details:
When processing AVI files RealPlayer calls upon a specific DLL, vidplin.dll, where the vulnerability lies. Realplayer relies on a strf structure value and allocates a fixed memory space of 0x428 that can be overflowed with values greater than the fixed buffer size causing arbitrary code to be executed.
Protection:
Retina Network Security Scanner has been updated to identify this vulnerability.
Blink - Endpoint Vulnerability Prevention - preemptively protects from this vulnerability.
Vendor Status:
RealNetworks has released a patch for this vulnerability.
Credit:
Discovery: Fang Xing
Related Links:
Retina Network Security Scanner - Free Trial
Blink Endpoint Vulnerability Prevention - Free Trial
Retina Network Security Scanner - Japanese Edition- http://www.sse.co.jp/eeye/index.html
Copyright (c) 1998-2008 eEye Digital Security
Permission is hereby granted for the redistribution of this alert electronically. It is not to be edited in any way without express consent of eEye. If you wish to reprint the whole or any part of this alert in any other medium excluding electronic medium, please email alert@eEye.com for permission.
Disclaimer
The information within this paper may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are no warranties, implied or express, with regard to this information. In no event shall the author be liable for any direct or indirect damages whatsoever arising out of or in connection with the use or spread of this information. Any use of this information is at the user's own risk.
