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TITLE:
FFmpeg Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA46111

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46111/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46111

RELEASE DATE:
2011-09-22

DISCUSS ADVISORY:
http://secunia.com/advisories/46111/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/46111/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=46111

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Some vulnerabilities have been reported in FFmpeg, which can be
exploited by malicious people to potentially compromise an
application using the library.

1) An integer underflow error within the "asfrtp_parse_packet()"
function (libavformat/rtpdec_asf.c) can be exploited to cause a
memory corruption by sending specially crafted ASF packets over RTP.

2) A signedness error within the "decode_mb_i()" function
(libavcodec/cavsdec.c) can be exploited by tricking a user into
opening a specially crafted Chinese AVS (CAVS) files.

This is related to vulnerability #1 in:
SA45532

3) A memory allocation error within the "av_probe_input_buffer()"
function (libavformat/utils.c) can be exploited to cause a memory
corruption.

The vulnerabilities are reported in versions prior to 0.7.4 and
0.8.3.

SOLUTION:
Update to version 0.7.4 or 0.8.3.

PROVIDED AND/OR DISCOVERED BY:
1) Jeong Wook Oh, Microsoft Vulnerability Research (MSVR).
2) Reported by the vendor.
3) The vendor credits Tanami Ohad.

ORIGINAL ADVISORY:
FFmpeg:
http://ffmpeg.org/releases/ffmpeg-0.7.4.changelog
http://ffmpeg.org/releases/ffmpeg-0.8.3.changelog

Microsoft Vulnerability Research:
http://technet.microsoft.com/en-us/security/msvr/msvr11-012

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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vulnerabilities.

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