TITLE:
FFmpeg libavcodec Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA17892

VERIFY ADVISORY:
http://secunia.com/advisories/17892/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
FFmpeg 0.x
http://secunia.com/product/6372/

DESCRIPTION:
Simon Kilvington has reported a vulnerability in FFmpeg libavcodec,
which can be exploited by malicious people to cause a DoS (Denial of
Service) and potentially to compromise a user's system.

The vulnerability is caused due to a boundary error in the
"avcodec_default_get_buffer()" function of "utils.c" in libavcodec.
This can be exploited to cause a heap-based buffer overflow when a
specially-crafted 1x1 ".png" file containing a palette is read.

SOLUTION:
The vulnerability has been fixed in the CVS repositories (utils.c
revision 1.162).

PROVIDED AND/OR DISCOVERED BY:
Simon Kilvington

ORIGINAL ADVISORY:
http://article.gmane.org/gmane.comp.video.ffmpeg.devel/26558

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