Multiple vulnerabilities has been found and corrected in ffmpeg :

The Matroska format decoder in FFmpeg does not properly allocate memory, which allows remote attackers to execute arbitrary code via a crafted file (CVE-2011-3362, CVE-2011-3504).

cavsdec.c in libavcodec in FFmpeg allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, related to the decode_residual_block, check_for_slice, and cavs_decode_frame functions, a different vulnerability than CVE-2011-3362 (CVE-2011-3973).

Integer signedness error in the decode_residual_inter function in cavsdec.c in libavcodec in FFmpeg allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, a different vulnerability than CVE-2011-3362 (CVE-2011-3974).

Double free vulnerability in the Theora decoder in FFmpeg allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream (CVE-2011-3892).

FFmpeg does not properly implement the MKV and Vorbis media handlers, which allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors (CVE-2011-3893).

Heap-based buffer overflow in the Vorbis decoder in FFmpeg allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream (CVE-2011-3895).

An error within the QDM2 decoder (libavcodec/qdm2.c) can be exploited to cause a buffer overflow (CVE-2011-4351).

An integer overflow error within the 'vp3_dequant()' function (libavcodec/vp3.c) can be exploited to cause a buffer overflow (CVE-2011-4352).

Errors within the 'av_image_fill_pointers()', the 'vp5_parse_coeff()', and the 'vp6_parse_coeff()' functions can be exploited to trigger out-of-bounds reads (CVE-2011-4353).

It was discovered that Libav incorrectly handled certain malformed VMD files. If a user were tricked into opening a crafted VMD 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-2011-4364).

It was discovered that Libav incorrectly handled certain malformed SVQ1 streams. If a user were tricked into opening a crafted SVQ1 stream 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-2011-4579).

The updated packages have been upgraded to the 0.6.5 version where these issues has been corrected.

Several vulnerabilities have been discovered in FFmpeg, a multimedia player, server and encoder. Multiple input validations in the decoders/ demuxers for Westwood Studios VQA, Apple MJPEG-B, Theora, Matroska, Vorbis, Sony ATRAC3, DV, NSV, files could lead to the execution of arbitrary code.

These issues were discovered by Aki Helin, Mateusz Jurczyk, Gynvael Coldwind, and Michael Niedermayer.

Multiple vulnerabilities has been found and corrected in ffmpeg :

The Matroska format decoder in FFmpeg does not properly allocate memory, which allows remote attackers to execute arbitrary code via a crafted file (CVE-2011-3362, CVE-2011-3504).

cavsdec.c in libavcodec in FFmpeg allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, related to the decode_residual_block, check_for_slice, and cavs_decode_frame functions, a different vulnerability than CVE-2011-3362 (CVE-2011-3973).

Integer signedness error in the decode_residual_inter function in cavsdec.c in libavcodec in FFmpeg allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, a different vulnerability than CVE-2011-3362 (CVE-2011-3974).

Double free vulnerability in the Theora decoder in FFmpeg allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream (CVE-2011-3892).

FFmpeg does not properly implement the MKV and Vorbis media handlers, which allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors (CVE-2011-3893).

Heap-based buffer overflow in the Vorbis decoder in FFmpeg allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream (CVE-2011-3895).

An error within the QDM2 decoder (libavcodec/qdm2.c) can be exploited to cause a buffer overflow (CVE-2011-4351).

An integer overflow error within the 'vp3_dequant()' function (libavcodec/vp3.c) can be exploited to cause a buffer overflow (CVE-2011-4352).

Errors within the 'av_image_fill_pointers()', the 'vp5_parse_coeff()', and the 'vp6_parse_coeff()' functions can be exploited to trigger out-of-bounds reads (CVE-2011-4353).

It was discovered that Libav incorrectly handled certain malformed VMD files. If a user were tricked into opening a crafted VMD 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-2011-4364).

It was discovered that Libav incorrectly handled certain malformed SVQ1 streams. If a user were tricked into opening a crafted SVQ1 stream 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-2011-4579).

Multiple input validations in the decoders/ demuxers for Westwood Studios VQA, Apple MJPEG-B, Theora, Matroska, Vorbis, Sony ATRAC3, DV, NSV, files could lead to the execution of arbitrary code (CVE-2011-3929, CVE-2011-3936, CVE-2011-3937, CVE-2011-3940, CVE-2011-3945, CVE-2011-3947, CVE-2012-0853, CVE-2012-0858).

The updated packages have been upgraded to the 0.7.12 version where these issues has been corrected.

The version of Google Chrome installed on the remote host is earlier than 15.0.874.120.  It is, therefore, potentially affected by the following vulnerabilities :

    - A double-free error exists in the Theora decoder.
      (CVE-2011-3892)

    - Out-of-bounds read errors exist in the MVK and Vorbis       media handlers. (CVE-2011-3893)

    - A memory corruption error exists in the VP8 decoding.
      (CVE-2011-3894)

    - A heap overflow error exists in the Vorbis decoder.
      (CVE-2011-3895)

    - A buffer overflow error exists in shader variable       mapping functionality. (CVE-2011-3896)

    - A use-after-free error exists related to unspecified       editing. (CVE-2011-3897)

    - In JRE7, applets are allowed to run without the       proper permissions. (CVE-2011-3898)

The remote host is affected by the vulnerability described in GLSA-201111-05 (Chromium, V8: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Chromium and V8. Please       review the CVE identifiers and release notes referenced below for       details.
  Impact :

    A context-dependent attacker could entice a user to open a specially       crafted website or JavaScript program using Chromium or V8, possibly       resulting in the execution of arbitrary code with the privileges of the       process, or a Denial of Service condition. The attacker also could cause       a Java applet to run without user confirmation.
  Workaround :

    There is no known workaround at this time.

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

Versions of Google Chrome earlier than 15.0.874.120 are affected by multiple vulnerabilities :

  - A double-free error exists in the Theora decoder. (CVE-2011-3892)

  - Out-of-bounds read errors exist in the MVK and Vorbis media handlers. (CVE-2011-3892)

  - A memory corruption error exists in the VP8 decoding. (CVE-2011-3894)

  - A heap overflow error exists in the Vorbis decoder. (CVE-2011-3895)

  - A buffer overflow error exists in the shader variable mapping functionality. (CVE-2011-3896)

  - A use-after-free error exists related to unspecified editing. (CVE-2011-3897)

  - In JRE7, applets are allowed to run without the proper permissions. (CVE-2011-3898)

ID	Name	Product	Family	Published	Updated	Severity
59096	Mandriva Linux Security Advisory : ffmpeg (MDVSA-2012:075)	Nessus	Mandriva Local Security Checks	5/15/2012	1/6/2021	high
51069	FreeBSD : chromium -- multiple vulnerabilities (6887828f-0229-11e0-b84d-00262d5ed8ee)	Nessus	FreeBSD Local Security Checks	12/8/2010	1/6/2021	critical
59094	Debian DSA-2471-1 : ffmpeg - several vulnerabilities	Nessus	Debian Local Security Checks	5/15/2012	1/11/2021	high
61951	Mandriva Linux Security Advisory : ffmpeg (MDVSA-2012:076)	Nessus	Mandriva Local Security Checks	9/6/2012	1/6/2021	critical
56779	Google Chrome < 15.0.874.120 Multiple Vulnerabilities	Nessus	Windows	11/11/2011	4/11/2022	high
56901	GLSA-201111-05 : Chromium, V8: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	11/22/2011	1/6/2021	high
69412	FreeBSD : gstreamer-ffmpeg -- Multiple vulnerabilities in bundled libav (4d087b35-0990-11e3-a9f4-bcaec565249c)	Nessus	FreeBSD Local Security Checks	8/21/2013	1/6/2021	critical
6094	Google Chrome < 15.0.874.120 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	11/18/2011	3/6/2019	high
800938	Google Chrome < 15.0.874.120 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	11/18/2011		high

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