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TITLE:
FFmpeg Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA47765

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47765/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47765

RELEASE DATE:
2012-01-30

DISCUSS ADVISORY:
http://secunia.com/advisories/47765/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Impact
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 * CVE Reference(s)

http://secunia.com/advisories/47765/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=47765

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

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 cause a DoS (Denial of Service) and
potentially compromise an application using the library.

1) A boundary error within the DV decoder can be exploited to cause
an out-of-bounds read via specially crafted media files.

2) An NULL-pointer dereference error within the DV decoder can be
exploited to cause a crash via specially crafted media files.

3) A double-free error within the "vp3_update_thread_context()"
function (libavcodec/vp3.c) can be exploited via specially crafted
media files.

4) An error within the "codec_get_buffer()" function (ffmpeg.c) can
be exploited via specially crafted media files.

5) An error within the "ff_h263_decode_frame()" function
(libavformat/nsvdec.c) can be exploited via specially crafted media
files.

6) A boundary error within the "nsv_read_chunk()" function
(libavformat/nsvdec.c) can be exploited to cause an out-of-bounds
write via specially crafted media files.

7) An error within the "decode_mb()" function
(libavcodec/error_resilience.c) can be exploited to cause an
out-of-bounds write via specially crafted media files.

8) An error within the "smacker_decode_header_tree()" function
(libavcodec/smacker.c) can be exploited via specially crafted media
files.

9) An error within the "decode_frame()" function
(libavcodec/kgv1dec.c) can be exploited via specially crafted media
files.

10) An error within the H264 decoder can be exploited to cause an
infinite loop via specially crafted media files.

11) An error within the "read_offs()" function
(libavcodec/mjpegbdec.c) can be exploited via specially crafted media
files.

12) An error within the "dirac_unpack_idwt_params()" function
(libavcodec/diracdec.c) can be exploited via specially crafted media
files.

13) An error within the "dirac_decode_data_unit()" function
(libavcodec/diracdec.c) can be exploited via specially crafted media
files.

14) An error within the "dpcm_decode_frame()" function
(libavcodec/dpcm.c) can be exploited via specially crafted media
files.

15) An error within the "decode_init()" function (libavcodec/kmvc.c)
can be exploited via specially crafted media files.

16) An error within the "rv20_decode_picture_header()" function
(libavcodec/rv10.c) can be exploited to cause a crash via specially
crafted Matroska files.

17) A NULL-pointer dereference error within the "decode_mb_info()"
function (libavcodec/indeo5.c) can be exploited to cause a crash via
specially crafted media files.

SOLUTION:
Update to version 0.10.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1-15) Mateusz "j00ru" Jurczyk and Gynvael Coldwind
16, 17) John Villamil

ORIGINAL ADVISORY:
http://ffmpeg.org/security.html

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:
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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:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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