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Category:   Application (Multimedia)  >   RealOne (RealPlayer) Vendors:   RealNetworks
(Red Hat Issues Fix) RealPlayer Buffer Overflow in Processing SMIL File Screen-Size Attribute Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1013366
SecurityTracker URL:  http://securitytracker.com/id/1013366
CVE Reference:   CVE-2005-0455   (Links to External Site)
Date:  Mar 4 2005
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 6.0.12.1059
Description:   iDEFENSE reported a vulnerability in RealPlayer in the processing of SMIL files. A remote user can cause arbitrary code to be executed.

A remote user can create a specially crafted Synchronized Multimedia Integration Language (smil) file to trigger a buffer overflow in the player's SMIL parser.

The vulnerability resides in 'datatype/smil/renderer/smil1/smlparse.cpp' in the processing of the screen size attribute. A valid SMIL file with the following type of line can trigger the flaw [where 'LONGSTRING' is more than 256 bytes]:

<text src="1024_768.en.txt" region="size" system-screen-size="LONGSTRINGX768">

The following Windows versions are affected:

RealPlayer 10.5 (6.0.12.1040-1056), RealPlayer 10, RealOne Player v2 (6.0.11.853 - 872), RealOne Player v2 (6.0.11.818 - 840), RealOne Player v1, RealPlayer 8, and RealPlayer Enterprise.

The following Mac versions are affected: Mac RealPlayer 10 (10.0.0.305 - 325) and Mac RealOne Player.

The following Linux versions are affected: Linux RealPlayer 10 and Helix Player.

The vendor was notified on January 14, 2005.

The original advisory is available at:

http://www.idefense.com/application/poi/display?id=209&type=vulnerabilities

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code with the privileges of the target users.
Solution:   Red Hat has released a fix.

Red Hat Enterprise Linux LACD 4AS:

i386:
2b7bfc2b30b15dad7c5a78704a798841 RealPlayer-10.0.3-1.i386.rpm

Red Hat Enterprise Linux LACD 4Desktop:

i386:
2b7bfc2b30b15dad7c5a78704a798841 RealPlayer-10.0.3-1.i386.rpm

Red Hat Enterprise Linux LACD 4ES:

i386:
2b7bfc2b30b15dad7c5a78704a798841 RealPlayer-10.0.3-1.i386.rpm

Red Hat Enterprise Linux LACD 4WS:

i386:
2b7bfc2b30b15dad7c5a78704a798841 RealPlayer-10.0.3-1.i386.rpm

Vendor URL:  service.real.com/help/faq/security/050224_player/EN/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4

Message History:   This archive entry is a follow-up to the message listed below.
Mar 1 2005 RealPlayer Buffer Overflow in Processing SMIL File Screen-Size Attribute Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2005:265-01] Critical: RealPlayer security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Critical: RealPlayer security update
Advisory ID:       RHSA-2005:265-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-265.html
Issue date:        2005-03-03
Updated on:        2005-03-03
Product:           Red Hat Enterprise Linux LACD
CVE Names:         CAN-2005-0455 CAN-2005-0611
- ---------------------------------------------------------------------

1. Summary:

An updated RealPlayer package that fixes two buffer overflow issues is now
available.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux LACD 4AS - i386
Red Hat Enterprise Linux LACD 4Desktop - i386
Red Hat Enterprise Linux LACD 4ES - i386
Red Hat Enterprise Linux LACD 4WS - i386

3. Problem description:

RealPlayer is a media player.

A stack based buffer overflow bug was found in RealPlayer's Synchronized
Multimedia Integration Language (SMIL) file processor. An attacker could
create a specially crafted SMIL file which would execute arbitrary code
when opened by a user. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-0455 to this issue.

A buffer overflow bug was found in the way RealPlayer decodes WAV sound
files.  An attacker could create a specially crafted WAV file which could
execute arbitrary code when opened by a user. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0611
to this issue.

All users of RealPlayer are advised to upgrade to this updated package,
which contains RealPlayer version 10.0.3 and is not vulnerable to these issues.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

150078 - CAN-2005-0611 .wav overflow in Realplayer
150050 - CAN-2005-0455 buffer overflow in realplayer

6. RPMs required:

Red Hat Enterprise Linux LACD 4AS:

i386:
2b7bfc2b30b15dad7c5a78704a798841  RealPlayer-10.0.3-1.i386.rpm

Red Hat Enterprise Linux LACD 4Desktop:

i386:
2b7bfc2b30b15dad7c5a78704a798841  RealPlayer-10.0.3-1.i386.rpm

Red Hat Enterprise Linux LACD 4ES:

i386:
2b7bfc2b30b15dad7c5a78704a798841  RealPlayer-10.0.3-1.i386.rpm

Red Hat Enterprise Linux LACD 4WS:

i386:
2b7bfc2b30b15dad7c5a78704a798841  RealPlayer-10.0.3-1.i386.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://service.real.com/help/faq/security/050224_player/EN/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0455
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0611

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2005 Red Hat, Inc.

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