We received the following report via bugtraq.
The issue is public.

Date: Wed, 2 Mar 2005 11:34:38 -0000
From: Mark Litchfield <mark@ngssoftware.com>
To: bugtraq@securityfocus.com
Subject: RealOne Player / Real .WAV Heap Overflow File Format Vulnerability


Mark Litchfield of NGSSoftware has discovered a high risk Heap Overflow
vulnerability in the .WAV file format when being opened by either of the
following products:

Windows:

RealPlayer 10.5 (6.0.12.1056 and below)
RealPlayer 10
RealOne Player V2
RealOne Player V1
RealPlayer 8
RealPlayer Enterprise

Linux:
RealPlayer 10 (10.0.0.2 and below)
Helix Player

This issue has been resolved in the latest version as detailed at :

http://service.real.com/realplayer/security/

It can be downloaded from:

http://service.real.com/help/faq/security/050224_player

Or alternatively select Tools / Check For Update from within the media
player.

NGSSoftware are going to withhold details of this flaw for three months.
Full details
will be published on the 1st of June 2005. This three month window will
allow users of
the above Real products the time needed to apply the patch before the
details are released to the general
public. This reflects NGSSoftware's approach to responsible disclosure.


NGSSoftware Insight Security Research
http://www.ngssoftware.com
http://www.databasesecurity.com/
+44(0)208 401 0070