GLSA 200509-01: MPlayer: Heap overflow in ad_pcm.c

http://security.gentoo.org/

Severity:	normal
Title:	MPlayer: Heap overflow in ad_pcm.c
Date:	09/01/2005
Bugs:	#103555
ID:	200509-01

Synopsis

A heap overflow in MPlayer might lead to 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_pre7-r1	>= 1.0_pre7-r1	All supported architectures

Description

Sven Tantau discovered a heap overflow in the code handling the strf chunk of PCM audio streams.

Impact

An attacker could craft a malicious video or audio file which, when opened using MPlayer, would end up executing arbitrary code on the victim's computer with the permissions of the user running MPlayer.

Workaround

You can mitigate the issue by adding "ac=-pcm," to your MPlayer configuration file (note that this will prevent you from playing uncompressed audio).

Resolution

All MPlayer users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/mplayer-1.0_pre7-r1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200509-01.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.