GLSA 200602-01: GStreamer FFmpeg plugin: Heap-based buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	GStreamer FFmpeg plugin: Heap-based buffer overflow
Date:	02/05/2006
Bugs:	#119512
ID:	200602-01

Synopsis

The GStreamer FFmpeg plugin is vulnerable to a buffer overflow that may be exploited by attackers to execute arbitrary code.

Background

The GStreamer FFmpeg plugin uses code from the FFmpeg library to provide fast colorspace conversion and multimedia decoders to the GStreamer open source media framework.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-plugins/gst-plugins-ffmpeg	< 0.8.7-r1	>= 0.8.7-r1	All supported architectures

Description

The GStreamer FFmpeg plugin contains derived code from 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).

Impact

A remote attacker could entice a user to run an application using the GStreamer FFmpeg plugin on a maliciously crafted PIX_FMT_PAL8 format image file (like PNG images), possibly leading to the execution of arbitrary code with the permissions of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All GStreamer FFmpeg plugin users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-plugins/gst-plugins-ffmpeg-0.8.7-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-200602-01.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.