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Fedora Update Notification
FEDORA-2011-5991
2011-04-26 15:28:46
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Name        : mingw32-libtiff
Product     : Fedora 15
Version     : 3.9.5
Release     : 1.fc15
URL         : http://www.remotesensing.org/libtiff/
Summary     : MinGW Windows port of the LibTIFF library
Description :
The libtiff package contains a library of functions for manipulating
TIFF (Tagged Image File Format) image format files.  TIFF is a widely
used file format for bitmapped images.  TIFF files usually end in the
.tif extension and they are often quite large.

The libtiff package should be installed if you need to manipulate TIFF
format image files.

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Update Information:

Update MinGW Windows cross-compiled libtiff to 3.9.5, incorporating most of our 
previous patches.

Includes a fix for CVE-2011-1167:
A flaw was reported in libtiff's thunder decoder.  The thunder decoder assumes 
4bits per pixel, but if a file has bitpersample set to a smaller value, or 
defaulted (1) then the allocated strip buffer will be too small, and a 
heap-based buffer overlow may occur.  This could be used to crash an 
application linked to libtiff, or execute arbitrary code with the privileges of 
the application opening a malicious TIFF file.
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References:

  [ 1 ] Bug #684939 - CVE-2011-1167 libtiff: heap-based buffer overflow in 
thunder decoder (ZDI-11-107)
        https://bugzilla.redhat.com/show_bug.cgi?id=684939
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This update can be installed with the "yum" update program.  Use 
su -c 'yum update mingw32-libtiff' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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