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Mandriva Linux Security Advisory 2011-114

Mandriva Linux Security Advisory 2011-114
Posted Jul 19, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-114 - oggparsevorbis.c in FFmpeg 0.5 does not properly perform certain pointer arithmetic, which might allow remote attackers to obtain sensitive memory contents and cause a denial of service via a crafted file that triggers an out-of-bounds read. vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow. Various other issues were also addressed.

tags | advisory, remote, denial of service, overflow, arbitrary
systems | linux, mandriva
advisories | CVE-2009-4632, CVE-2009-4633, CVE-2009-4634, CVE-2009-4635, CVE-2009-4636, CVE-2009-4640, CVE-2010-3429, CVE-2010-4704, CVE-2011-0722, CVE-2011-0723
SHA-256 | 2edb4f909d4679c9270182246df61ab65e6bfeb80e7547c02673cf6c81e96391

Mandriva Linux Security Advisory 2011-114

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Hash: SHA1

_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2011:114
http://www.mandriva.com/security/
_______________________________________________________________________

Package : blender
Date : July 18, 2011
Affected: 2010.1
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities have been identified and fixed in blender:

oggparsevorbis.c in FFmpeg 0.5 does not properly perform certain
pointer arithmetic, which might allow remote attackers to obtain
sensitive memory contents and cause a denial of service via a crafted
file that triggers an out-of-bounds read. (CVE-2009-4632)

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a
comparison operator was intended, which might allow remote attackers
to cause a denial of service and possibly execute arbitrary code via
a crafted file that modifies a loop counter and triggers a heap-based
buffer overflow. (CVE-2009-4633)

Multiple integer underflows in FFmpeg 0.5 allow remote attackers to
cause a denial of service and possibly execute arbitrary code via a
crafted file that (1) bypasses a validation check in vorbis_dec.c
and triggers a wraparound of the stack pointer, or (2) access a
pointer from out-of-bounds memory in mov.c, related to an elst tag
that appears before a tag that creates a stream. (CVE-2009-4634)

FFmpeg 0.5 allows remote attackers to cause a denial of service and
possibly execute arbitrary code via a crafted MOV container with
improperly ordered tags that cause (1) mov.c and (2) utils.c to use
inconsistent codec types and identifiers, which causes the mp3 decoder
to process a pointer for a video structure, leading to a stack-based
buffer overflow. (CVE-2009-4635)

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang)
via a crafted file that triggers an infinite loop. (CVE-2009-4636)

Array index error in vorbis_dec.c in FFmpeg 0.5 allows remote
attackers to cause a denial of service and possibly execute arbitrary
code via a crafted Vorbis file that triggers an out-of-bounds
read. (CVE-2009-4640)

flicvideo.c in libavcodec 0.6 and earlier in FFmpeg, as used in MPlayer
and other products, allows remote attackers to execute arbitrary code
via a crafted flic file, related to an arbitrary offset dereference
vulnerability. (CVE-2010-3429)

libavcodec/vorbis_dec.c in the Vorbis decoder in FFmpeg 0.6.1
and earlier allows remote attackers to cause a denial of service
(application crash) via a crafted .ogg file, related to the
vorbis_floor0_decode function. (CVE-2010-4704)

Fix heap corruption crashes (CVE-2011-0722)

Fix invalid reads in VC-1 decoding (CVE-2011-0723)

The updated packages have been patched to correct these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4632
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4633
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4634
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4635
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4636
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4640
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3429
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4704
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0722
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0723
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2010.1:
188d54b8e1966117091a4de337522bd3 2010.1/i586/blender-2.49b-4.1mdv2010.2.i586.rpm
b050febb6e34f277fea3513ef1cbf731 2010.1/SRPMS/blender-2.49b-4.1mdv2010.2.src.rpm

Mandriva Linux 2010.1/X86_64:
bd22edf9c49ae42c6053da5b74470d1f 2010.1/x86_64/blender-2.49b-4.1mdv2010.2.x86_64.rpm
b050febb6e34f277fea3513ef1cbf731 2010.1/SRPMS/blender-2.49b-4.1mdv2010.2.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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