GLSA 200603-03: MPlayer: Multiple integer overflows

http://security.gentoo.org/

Severity:	normal
Title:	MPlayer: Multiple integer overflows
Date:	03/04/2006
Bugs:	#115760, #122029
ID:	200603-03

Synopsis

MPlayer is vulnerable to integer overflows in FFmpeg and ASF decoding that could potentially result in the execution of arbitrary code.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-video/mplayer	< 1.0.20060217	>= 1.0.20060217	All supported architectures

Description

MPlayer makes use of the FFmpeg library, which is vulnerable to a heap overflow in the avcodec_default_get_buffer() function discovered by Simon Kilvington (see GLSA 200601-06). Furthermore, AFI Security Research discovered two integer overflows in ASF file format decoding, in the new_demux_packet() function from libmpdemux/demuxer.h and the demux_asf_read_packet() function from libmpdemux/demux_asf.c.

Impact

An attacker could craft a malicious media file which, when opened using MPlayer, would lead to a heap-based buffer overflow. This could result in the execution of arbitrary code with the permissions of the user running MPlayer.

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-1.0.20060217"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200603-03.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 https://bugs.gentoo.org.