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Mandriva Linux Security Advisory 2012-074-1

Mandriva Linux Security Advisory 2012-074-1
Posted Aug 30, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-074 - 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. 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 via an invalid bitstream in a Chinese AVS video file, a different vulnerability than CVE-2011-3362. Various other issues have also been addressed.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, mandriva
advisories | CVE-2011-3362, CVE-2011-3504, CVE-2011-3973, CVE-2011-3974, CVE-2011-3893, CVE-2011-3895, CVE-2011-4351, CVE-2011-4352, CVE-2011-4353, CVE-2011-4364, CVE-2011-4579
MD5 | 4f2cae4e150c06a5b3cda2d7bec7e23c

Mandriva Linux Security Advisory 2012-074-1

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2012:074-1
http://www.mandriva.com/security/
_______________________________________________________________________

Package : ffmpeg
Date : August 30, 2012
Affected: Enterprise Server 5.0
_______________________________________________________________________

Problem Description:

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).

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 0.5.9 version where
these issues has been corrected.

Additionally a couple of packages needed to be rebuilt for the new
ffmpeg version and is also being provided with this advisory.

Update:

A missing dependency was discovered which prevented the sox library
from installing properly. This updated advisory provided the missing
libwavpack1 and lib64wavpack1 packages.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3362
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3504
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3973
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3974
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3893
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3895
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4351
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4352
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4353
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4364
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4579
_______________________________________________________________________

Updated Packages:

Mandriva Enterprise Server 5:
e5eb142288909af6edc2a4e8de5da929 mes5/i586/libwavpack1-4.50.1-1.1mdvmes5.2.i586.rpm
3c13b4549f16fc37a1f1a2c26eb4b0ca mes5/i586/libwavpack-devel-4.50.1-1.1mdvmes5.2.i586.rpm
a2b9c040c0716a2f857db06216a804bb mes5/i586/wavpack-4.50.1-1.1mdvmes5.2.i586.rpm
f918f7bee89f6b3683709dfe936208df mes5/SRPMS/wavpack-4.50.1-1.1mdvmes5.2.src.rpm

Mandriva Enterprise Server 5/X86_64:
fa81de9663db8946cd5b3e86a8696291 mes5/x86_64/lib64wavpack1-4.50.1-1.1mdvmes5.2.x86_64.rpm
b31e5c045f36791a2b2dea8b9a9052fb mes5/x86_64/lib64wavpack-devel-4.50.1-1.1mdvmes5.2.x86_64.rpm
35acbdb69bd2d53c1c425ae75273380d mes5/x86_64/wavpack-4.50.1-1.1mdvmes5.2.x86_64.rpm
f918f7bee89f6b3683709dfe936208df mes5/SRPMS/wavpack-4.50.1-1.1mdvmes5.2.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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