Otkriveno je nekoliko propusta paketa blender koje udaljeni napadači mogu iskoristiti za DoS napad, pokretanje proizvoljnog programskog koda ili otkrivanje osjetljivih informacija.

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 Mandriva Linux Security Advisory                         MDVSA-2011:114
 http://www.mandriva.com/security/
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 Package : blender
 Date    : July 18, 2011
 Affected: 2010.1
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 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.
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 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
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 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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