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Category:   Application (Multimedia)  >   MPlayer Vendors:   mplayerhq.hu
(Gentoo Issues Fix) MPlayer Has Multiple Stack/Heap/Buffer Overflows That May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1012635
SecurityTracker URL:  http://securitytracker.com/id/1012635
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Dec 20 2004
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.0pre5try2
Description:   Several buffer overflow vulnerabilities were reported in MPlayer. A remote user may be able to execute arbitrary code on the target user's system.

The vendor reported that there is a potential heap overflow in the processing of Real RTSP streams in the real_setup_and_get_header() function in 'libmpdemux/realrtsp/real.c'. There is also a heap overflow in the PNM streaming code in 'libmpdemux/pnm.c'.

A stack overflow is reported in the MMST streaming code in 'libmpdemux/asf_mmst_streaming.c'.

Several buffer overflows are reported in 'libmpdemux/demuxer.c' and a buffer overflow is reported in 'mp3lib/layer2.c'.

iDEFENSE is credited with reporting some of these flaws. Others were discovered by the vendor.

The vendor was notified on December 10, 2004.

Impact:   A remote user may be able to cause arbitrary code to be executed on the target user's computer with the privileges of the target user.
Solution:   Gentoo has released a fix and indicates that all MPlayer users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/mplayer-1.0_pre5-r5"

Vendor URL:  www.mplayerhq.hu/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Gentoo)

Message History:   This archive entry is a follow-up to the message listed below.
Dec 16 2004 MPlayer Has Multiple Stack/Heap/Buffer Overflows That May Let Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [gentoo-announce] [ GLSA 200412-21 ] MPlayer: Multiple overflows


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Gentoo Linux Security Advisory                           GLSA 200412-21
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: MPlayer: Multiple overflows
      Date: December 20, 2004
      Bugs: #74473
        ID: 200412-21

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Synopsis
========

Multiple overflow vulnerabilities have been found in MPlayer,
potentially resulting in remote executing of arbitrary code.

Background
==========

MPlayer is a media player capable of handling multiple multimedia file
formats.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /    Vulnerable    /              Unaffected
    -------------------------------------------------------------------
  1  media-video/mplayer     <= 1.0_pre5-r4             >= 1.0_pre5-r5

Description
===========

iDEFENSE, Ariel Berkman and the MPlayer development team found multiple
vulnerabilities in MPlayer. These include potential heap overflows in
Real RTSP and pnm streaming code, stack overflows in MMST streaming
code and multiple buffer overflows in BMP demuxer and mp3lib code.

Impact
======

A remote attacker could craft a malicious file or design a malicious
streaming server. Using MPlayer to view this file or connect to this
server could trigger an overflow and execute attacker-controlled code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MPlayer users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/mplayer-1.0_pre5-r5"

References
==========

  [ 1 ] iDEFENSE Advisory

http://www.idefense.com/application/poi/display?id=168&type=vulnerabilities
  [ 2 ] iDEFENSE Advisory

http://www.idefense.com/application/poi/display?id=167&type=vulnerabilities
  [ 3 ] iDEFENSE Advisory

http://www.idefense.com/application/poi/display?id=166&type=vulnerabilities
  [ 4 ] Ariel Berkman Advisory
        http://tigger.uic.edu/~jlongs2/holes/mplayer.txt

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200412-21.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0


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