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RealNetworks, Inc. Releases Update to Address Security Vulnerabilities.

Updated October 26, 2004

RealNetworks, Inc. has addressed a recently discovered security vulnerability that offered the potential for an attacker to run arbitrary or malicious code on a customer's machine. RealNetworks has received no reports of machines compromised as a result of the now-remedied vulnerability. RealNetworks takes all security vulnerabilities very seriously.

The specific exploit was:

  • To fashion a malicious skin file to cause a buffer overflow which could have allowed an attacker to execute arbitrary code on a customer's machine. The buffer overrun was designed to occur in a 3rd-party compression library, DUNZIP32.DLL.

    Skins files from RealNetworks' site are carefully examined before posting for viruses and exploits.

Affected Software:

Windows
Software Affected? Language Update Available?
RealPlayer 10.5 (6.0.12.1056) No All Supported Not required
RealPlayer 10.5 (6.0.12.1053) Yes All Supported Yes
RealPlayer 10.5 (6.0.12.1040) Yes English Yes
RealPlayer 10.5 Beta (6.0.12.1016) Yes English Requires upgrade
RealPlayer 10 Yes All Supported Yes
RealOne Player v2 Yes All Supported Yes
RealOne Player v1 Yes English Requires upgrade
RealPlayer 8 No All Supported Not required
RealPlayer Enterprise No English Not required

Note: To see your Player version number (6.0.12.xxxx), select Help > About in the Player menus.


Mac
Software Affected? Language Update Available?
Mac RealPlayer 10 No All Supported Not required
Mac RealPlayer 10 Beta No English Not required
Mac RealOne Player No English Not required

Linux
Software Affected? Language Update Available?
Linux RealPlayer 10 No English Not required
Helix Player No English Not required

Handheld Devices
Software Affected? Language Update Available?
Nokia Series60 Handsets No English Not Required
Helix Player for Symbian No English Not Required
RealPlayer for Palm No English Not Required
RealOne Player for Palm No English Not Required

Workaround:

To ensure that your Player is protected, we recommend installing the available updates.


UPDATES


Windows Players:

RealOne Player (English only) and RealPlayer 10.5 Beta (English only) require a full download to correct this issue. Please click here or use the following steps to upgrade your Player:

  1. In the Tools menu select Check for Update.
  2. Select the box next to the "RealPlayer 10.5 with Harmony™ Technology" component.
  3. Click Install to download and install the update.

RealOne Player v2, RealPlayer 10, and RealPlayer 10.5 (Final Release) customers please click here or use the following steps to update your Player:

  1. In the Tools menu select Check for Update.
  2. Select the box next to the "Security Update - Skin File Overflow" component.
  3. Click Install to download and install the update.

German
English
Spanish
French
Italian
Portuguese
Japanese
Korean
Simplified Chinese
Traditional Chinese

Acknowledgements:

RealNetworks would like to acknowledge eEye Digital Security and John Heasman for bringing this exploit to our attention as well those who subsequently worked with RealNetworks to correct the vulnerability.

Warranty:

RealNetworks Inc. endeavors to provide you with the highest quality products and services, but cannot guarantee, and does not warrant, that the operation of any RealNetworks product will be error-free, uninterrupted or secure. Please see your original license agreement for details of our limited warranty or warranty disclaimer.