Kod programskog paketa libexif uočeno je i ispravljeno više sigurnosnih propusta. Udaljeni napadači su ih mogli iskoristiti za otkrivanje osjetljivih informacija, proizvoljno izvršavanje programskog koda i DoS napad.

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 Mandriva Linux Security Advisory                         MDVSA-2012:106
 http://www.mandriva.com/security/
 _______________________________________________________________________

 Package : libexif
 Date    : July 13, 2012
 Affected: 2011., Enterprise Server 5.0
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 Problem Description:

 Multiple vulnerabilities has been discovered and corrected in libexif:
 
 A heap-based out-of-bounds array read in the exif_entry_get_value
 function in libexif/exif-entry.c in libexif 0.6.20 and earlier allows
 remote attackers to cause a denial of service or possibly obtain
 potentially sensitive information from process memory via an image
 with crafted EXIF tags (CVE-2012-2812).
 
 A heap-based out-of-bounds array read in the exif_convert_utf16_to_utf8
 function in libexif/exif-entry.c in libexif 0.6.20 and earlier allows
 remote attackers to cause a denial of service or possibly obtain
 potentially sensitive information from process memory via an image
 with crafted EXIF tags (CVE-2012-2813).
 
 A buffer overflow in the exif_entry_format_value function in
 libexif/exif-entry.c in libexif 0.6.20 allows remote attackers to
 cause a denial of service or possibly execute arbitrary code via an
 image with crafted EXIF tags (CVE-2012-2814).
 
 A heap-based out-of-bounds array read in the exif_data_load_data
 function in libexif 0.6.20 and earlier allows remote attackers to
 cause a denial of service or possibly obtain potentially sensitive
 information from process memory via an image with crafted EXIF tags
 (CVE-2012-2836).
 
 A divide-by-zero error in the mnote_olympus_entry_get_value function
 while formatting EXIF maker note tags in libexif 0.6.20 and earlier
 allows remote attackers to cause a denial of service via an image
 with crafted EXIF tags (CVE-2012-2837).
 
 An off-by-one error in the exif_convert_utf16_to_utf8 function in
 libexif/exif-entry.c in libexif 0.6.20 and earlier allows remote
 attackers to cause a denial of service or possibly execute arbitrary
 code via an image with crafted EXIF tags (CVE-2012-2840).
 
 An integer underflow in the exif_entry_get_value function can cause a
 heap overflow and potentially arbitrary code execution while formatting
 an EXIF tag, if the function is called with a buffer size parameter
 equal to zero or one (CVE-2012-2841).
 
 The updated packages have been upgraded to the 0.6.21 version which
 is not vulnerable to these issues.
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 References:

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2812
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2813
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2814
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2836
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2837
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2840
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2841
 http://sourceforge.net/mailarchive/message.php?msg_id=29534027
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 Updated Packages:

 Mandriva Linux 2011:
 940eff19c8443292d21d79e70c8087cc 
2011/i586/libexif12-0.6.21-0.1-mdv2011.0.i586.rpm
 667a614e2bbc8bc9d3f9d48f55c42218 
2011/i586/libexif12-common-0.6.21-0.1-mdv2011.0.i586.rpm
 87ce2bfa124d4afd4bbc0edf7248f8b8 
2011/i586/libexif-devel-0.6.21-0.1-mdv2011.0.i586.rpm 
 a3c29364ee682113d03bdd2f66c55183  2011/SRPMS/libexif-0.6.21-0.1.src.rpm

 Mandriva Linux 2011/X86_64:
 cb266db3562c08fd8e8a13971026b353 
2011/x86_64/lib64exif12-0.6.21-0.1-mdv2011.0.x86_64.rpm
 3f19dcfae4d229db5d6e481486f66f74 
2011/x86_64/lib64exif-devel-0.6.21-0.1-mdv2011.0.x86_64.rpm
 6a43f86c562d161fccbf0c0cb2d619d8 
2011/x86_64/libexif12-common-0.6.21-0.1-mdv2011.0.x86_64.rpm 
 a3c29364ee682113d03bdd2f66c55183  2011/SRPMS/libexif-0.6.21-0.1.src.rpm

 Mandriva Enterprise Server 5:
 33855decda0e70d5a5603e5c8058b302 
mes5/i586/libexif12-0.6.21-0.1mdvmes5.2.i586.rpm
 25e42d52dd9988a6cbb50b1960917380 
mes5/i586/libexif12-common-0.6.21-0.1mdvmes5.2.i586.rpm
 f94b0cc22c53c281a7eb602aea24e1ed 
mes5/i586/libexif-devel-0.6.21-0.1mdvmes5.2.i586.rpm 
 56d11b394a217376a92bac526b63b031 
mes5/SRPMS/libexif-0.6.21-0.1mdvmes5.2.src.rpm

 Mandriva Enterprise Server 5/X86_64:
 abc6ec8a1e31a47b60dd7effc392d9f1 
mes5/x86_64/lib64exif12-0.6.21-0.1mdvmes5.2.x86_64.rpm
 79029e3c340e77c282a74c3c6b4799c5 
mes5/x86_64/lib64exif-devel-0.6.21-0.1mdvmes5.2.x86_64.rpm
 379071ee301f82c094fb11568d2d1fd1 
mes5/x86_64/libexif12-common-0.6.21-0.1mdvmes5.2.x86_64.rpm 
 56d11b394a217376a92bac526b63b031 
mes5/SRPMS/libexif-0.6.21-0.1mdvmes5.2.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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