Multiple vulnerabilities were found in FFmpeg, a multimedia player, server and encoder :

  - CVE-2011-3362     An integer signedness error in decode_residual_block     function of the Chinese AVS video (CAVS) decoder in     libavcodec can lead to denial of service (memory     corruption and application crash) or possible code     execution via a crafted CAVS file.

  - CVE-2011-3973/ CVE-2011-3974     Multiple errors in the Chinese AVS video (CAVS) decoder     can lead to denial of service (memory corruption and     application crash) via an invalid bitstream.

  - CVE-2011-3504     A memory allocation problem in the Matroska format     decoder can lead to code execution via a crafted file.

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.

The remote host is affected by the vulnerability described in GLSA-201310-12 (FFmpeg: Multiple vulnerabilities)

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

    A remote attacker could entice a user to open a specially crafted media       file, possibly leading to the execution of arbitrary code with the       privileges of the user running the application or a Denial of Service.
  Workaround :

    There is no known workaround at this time.

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.

ID	Name	Product	Family	Published	Updated	Severity
56727	Debian DSA-2336-1 : ffmpeg - several vulnerabilities	Nessus	Debian Local Security Checks	11/8/2011	1/11/2021	high
59096	Mandriva Linux Security Advisory : ffmpeg (MDVSA-2012:075)	Nessus	Mandriva Local Security Checks	5/15/2012	1/6/2021	high
70647	GLSA-201310-12 : FFmpeg: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	10/27/2013	1/6/2021	critical
61951	Mandriva Linux Security Advisory : ffmpeg (MDVSA-2012:076)	Nessus	Mandriva Local Security Checks	9/6/2012	1/6/2021	critical

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