GLSA-200601-06 : xine-lib, FFmpeg: Heap-based buffer overflow

This script is Copyright (C) 2006-2015 Tenable Network Security, Inc.

Synopsis :

The remote Gentoo host is missing one or more security-related

Description :

The remote host is affected by the vulnerability described in GLSA-200601-06
(xine-lib, FFmpeg: Heap-based buffer overflow)

Simon Kilvington has reported a vulnerability in FFmpeg
libavcodec. The flaw is due to a buffer overflow error in the
'avcodec_default_get_buffer()' function. This function doesn't properly
handle specially crafted PNG files as a result of a heap overflow.

Impact :

A remote attacker could entice a user to run an FFmpeg based
application on a maliciously crafted PNG file, resulting in the
execution of arbitrary code with the permissions of the user running
the application.

Workaround :

There is no known workaround at this time.

See also :

Solution :

All xine-lib users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=media-libs/xine-lib-1.1.1-r3'
All FFmpeg users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=media-video/ffmpeg-0.4.9_p20051216'

Risk factor :

High / CVSS Base Score : 7.5

Family: Gentoo Local Security Checks

Nessus Plugin ID: 20416 (gentoo_GLSA-200601-06.nasl)

Bugtraq ID:

CVE ID: CVE-2005-4048

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