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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200601-06] xine-lib, FFmpeg: Heap-based buffer overflow


Vulnerability Assessment Details

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

Vulnerability Assessment Summary
xine-lib, FFmpeg: Heap-based buffer overflow

Detailed Explanation for this Vulnerability Assessment
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.

References:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4048
http://article.gmane.org/gmane.comp.video.ffmpeg.devel/26558


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"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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