The ff_h264_decode_seq_parameter_set function in h264_ps.c in libavcodec in FFmpeg before 0.9.1 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted H.264 file, related to the chroma_format_idc value.

Bundled version of libav in gstreamer-ffmpeg contains a number of vulnerabilities.

Updated ffmpeg packages fix security vulnerabilities :

h264: Add check for invalid chroma_format_idc (CVE-2012-0851)

h263dec: Disallow width/height changing with frame threads (CVE-2011-3937)

vc1dec: check that coded slice positions and interlacing match. This fixes out of array writes (CVE-2012-2796)

alsdec: fix number of decoded samples in first sub-block in BGMC mode (CVE-2012-2790)

cavsdec: check for changing w/h. Our decoder does not support changing w/h (CVE-2012-2777, CVE-2012-2784)

indeo4: update AVCodecContext width/height on size change (CVE-2012-2787)

avidec: use actually read size instead of requested size (CVE-2012-2788)

wmaprodec: check num_vec_coeffs for validity (CVE-2012-2789)

lagarith: check count before writing zeros (CVE-2012-2793)

indeo3: fix out of cell write (CVE-2012-2776)

indeo5: check tile size in decode_mb_info\(\). This prevents writing into a too small array if some parameters changed without the tile being reallocated (CVE-2012-2794)

indeo5dec: Make sure we have had a valid gop header. This prevents decoding happening on a half initialized context (CVE-2012-2779)

indeo4/5: check empty tile size in decode_mb_info\(\). This prevents writing into a too small array if some parameters changed without the tile being reallocated (CVE-2012-2800)

dfa: improve boundary checks in decode_dds1\(\) (CVE-2012-2798)

dfa: check that the caller set width/height properly (CVE-2012-2786)

avsdec: Set dimensions instead of relying on the demuxer. The decode function assumes that the video will have those dimensions (CVE-2012-2801)

ac3dec: ensure get_buffer\(\) gets a buffer for the correct number of channels (CVE-2012-2802)

rv34: error out on size changes with frame threading (CVE-2012-2772)

alsdec: check opt_order. Fixes out of array write in quant_cof. Also make sure no invalid opt_order stays in the context (CVE-2012-2775)

This updates ffmpeg to version 0.10.6 which contains the security fixes above as well as other bug fixes.

The remote host is affected by the vulnerability described in GLSA-201210-06 (Libav: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Libav. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted media       file in an application linked against Libav, possibly resulting in       execution of arbitrary code with the privileges of the application or a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

It was discovered that FFmpeg, Debian's version of the Libav media codec suite, contains vulnerabilities in the DPCM codecs (CVE-2011-3951 ), H.264 (CVE-2012-0851 ), ADPCM (CVE-2012-0852 ), and the KMVC decoder (CVE-2011-3952 ).

In addition, this update contains bug fixes from the Libav 0.5.9 upstream release.

Mateusz Jurczyk and Gynvael Coldwind discovered that FFmpeg incorrectly handled certain malformed DV files. If a user were tricked into opening a crafted DV file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2011-3929, CVE-2011-3936)

Mateusz Jurczyk and Gynvael Coldwind discovered that FFmpeg incorrectly handled certain malformed NSV files. If a user were tricked into opening a crafted NSV file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
(CVE-2011-3940)

Mateusz Jurczyk and Gynvael Coldwind discovered that FFmpeg incorrectly handled certain malformed MJPEG-B files. If a user were tricked into opening a crafted MJPEG-B file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
(CVE-2011-3947)

Mateusz Jurczyk and Gynvael Coldwind discovered that FFmpeg incorrectly handled certain malformed DPCM files. If a user were tricked into opening a crafted DPCM file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
(CVE-2011-3951)

Mateusz Jurczyk and Gynvael Coldwind discovered that FFmpeg incorrectly handled certain malformed KMVC files. If a user were tricked into opening a crafted KMVC file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
(CVE-2011-3952)

It was discovered that FFmpeg incorrectly handled certain malformed H.264 files. If a user were tricked into opening a crafted H.264 file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0851)

It was discovered that FFmpeg incorrectly handled certain malformed ADPCM files. If a user were tricked into opening a crafted ADPCM file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0852)

It was discovered that FFmpeg incorrectly handled certain malformed Atrac 3 files. If a user were tricked into opening a crafted Atrac 3 file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0853)

It was discovered that FFmpeg incorrectly handled certain malformed Shorten files. If a user were tricked into opening a crafted Shorten file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0858)

It was discovered that FFmpeg incorrectly handled certain malformed Vorbis files. If a user were tricked into opening a crafted Vorbis file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0859)

Fabian Yamaguchi discovered that FFmpeg incorrectly handled certain malformed VQA files. If a user were tricked into opening a crafted VQA file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0947).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Mateusz Jurczyk and Gynvael Coldwind discovered that Libav incorrectly handled certain malformed DV files. If a user were tricked into opening a crafted DV file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.10. (CVE-2011-3929, CVE-2011-3936)

Mateusz Jurczyk and Gynvael Coldwind discovered that Libav incorrectly handled certain malformed NSV files. If a user were tricked into opening a crafted NSV file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2011-3940)

Mateusz Jurczyk and Gynvael Coldwind discovered that Libav incorrectly handled certain malformed Kega Game Video (KGV1) files. If a user were tricked into opening a crafted Kega Game Video (KGV1) file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2011-3945)

Mateusz Jurczyk and Gynvael Coldwind discovered that Libav incorrectly handled certain malformed MJPEG-B files. If a user were tricked into opening a crafted MJPEG-B file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2011-3947)

Mateusz Jurczyk and Gynvael Coldwind discovered that Libav incorrectly handled certain malformed DPCM files. If a user were tricked into opening a crafted DPCM file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2011-3951)

Mateusz Jurczyk and Gynvael Coldwind discovered that Libav incorrectly handled certain malformed KMVC files. If a user were tricked into opening a crafted KMVC file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2011-3952)

Jeong Wook Oh discovered that Libav incorrectly handled certain malformed ASF files. If a user were tricked into opening a crafted ASF file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.10.
(CVE-2011-4031)

It was discovered that Libav incorrectly handled certain malformed Westwood SNDx files. If a user were tricked into opening a crafted Westwood SNDx file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.10. (CVE-2012-0848)

Diana Elena Muscalu discovered that Libav incorrectly handled certain malformed AAC files. If a user were tricked into opening a crafted AAC file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2012-0850)

It was discovered that Libav incorrectly handled certain malformed H.264 files. If a user were tricked into opening a crafted H.264 file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0851)

It was discovered that Libav incorrectly handled certain malformed ADPCM files. If a user were tricked into opening a crafted ADPCM file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2012-0852)

It was discovered that Libav incorrectly handled certain malformed Atrac 3 files. If a user were tricked into opening a crafted Atrac 3 file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2012-0853)

It was discovered that Libav incorrectly handled certain malformed Shorten files. If a user were tricked into opening a crafted Shorten file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2012-0858)

It was discovered that Libav incorrectly handled certain malformed Vorbis files. If a user were tricked into opening a crafted Vorbis file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 11.04 and Ubuntu 11.10. (CVE-2012-0859)

Fabian Yamaguchi discovered that Libav incorrectly handled certain malformed VQA files. If a user were tricked into opening a crafted VQA file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2012-0947).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
69412	FreeBSD : gstreamer-ffmpeg -- Multiple vulnerabilities in bundled libav (4d087b35-0990-11e3-a9f4-bcaec565249c)	Nessus	FreeBSD Local Security Checks	critical
66093	Mandriva Linux Security Advisory : ffmpeg (MDVSA-2013:079)	Nessus	Mandriva Local Security Checks	critical
62651	GLSA-201210-06 : Libav: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
59772	Debian DSA-2494-1 : ffmpeg - several vulnerabilities	Nessus	Debian Local Security Checks	medium
59566	Ubuntu 10.04 LTS : ffmpeg vulnerabilities (USN-1479-1)	Nessus	Ubuntu Local Security Checks	medium
59565	Ubuntu 11.04 / 11.10 / 12.04 LTS : libav vulnerabilities (USN-1478-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2012-0851

high

Tenable Plugins

critical

critical

critical

medium

medium

high