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Message-Id:	<cygwin.42D31183.60605@cwilson.fastmail.fm>
Date:	Mon, 11 Jul 2005 20:40:35 -0400
From:	Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
User-Agent:	Mozilla Thunderbird 1.0 (Windows/20041206)
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To:	cygwin AT cygwin DOT com
Subject:	[ANNOUNCEMENT] Updated: libpng-1.2.8-2, libpng12-1.2.8-2, libpng12-devel-1.2.8-2, libpng10-1.0.18-2, libpng10-devel-1.0.18-2

The libpng packages offer the standard libraries for manipulating PNG 
files, a turbo-studly lossless image format.  This is a security update. 
  See WARNING below.

libpng10-1.0.18-2
libpng10-devel-1.0.18-2

libpng-1.2.8-2
libpng12-1.2.8-2
libpng12-devel-1.2.8-2

CHANGES:
+  Version management handled by update-alternatives instead of
    homegrown postinstall scripts.

1.2.x series:
-----
+ routine version update
   + fixes the following security advisories (present in 1.2.5-4)
     # CERT VU#388984 (CVE CAN-2004-0597) (this is the serious one!)
     # CERT VU#160448 (CVE CAN-2004-0599)
     # CERT VU#236656 (CVE CAN-2004-0598)
     # CERT VU#286464 (CVE CAN-2004-0599)
     # CERT VU#477512 (CVE CAN-2004-0599)
     # CERT VU#817368 (CVE CAN-2004-0597)
   + is not affected by "invalid zlib header" problem introduced
     in version 1.2.6
   + is not affected by "stripping alpha channel causes program crash"
     issue present in versions 1.2.6 and 1.2.7

1.0.x series:
-----
+ routine version update
   + fixes the following security advisories (present in 1.0.15-4)
     # CERT VU#388984 (CVE CAN-2004-0597) (this is the serious one!)
     # CERT VU#160448 (CVE CAN-2004-0599)
     # CERT VU#236656 (CVE CAN-2004-0598)
     # CERT VU#286464 (CVE CAN-2004-0599)
     # CERT VU#477512 (CVE CAN-2004-0599)
     # CERT VU#817368 (CVE CAN-2004-0597)
   + is not affected by "invalid zlib header" problem introduced
     in version 1.0.16
   + is not affected by "stripping alpha channel causes program crash"
     issue present in versions 1.0.16 and 1.0.17

WARNING:
----------
Because the 1.2.5-4/1.0.15-4 packages did NOT include preremove scripts, 
the new postinstall scripts which use update-alternatives may fail to 
"take ownership" of the generic (unversioned) symlinks.  It may be 
necessary for the site administrator to issue the following commands 
(after installing this update), to remove the old unversioned symbolic 
links and allow update-alternatives to recreate (and own) them:

    rm -f /usr/bin/libpng-config
    rm -f /usr/lib/libpng.a
    rm -f /usr/lib/libpng.dll.a
    rm -f /usr/lib/pkgconfig/libpng.pc
    rm -f /usr/include/libpng
    rm -f /usr/include/png.h
    rm -f /usr/include/pngconf.h

    /usr/sbin/update-alternatives --auto libpng

See /usr/share/doc/Cygwin/libpngXX-devel.README for more information.

-- 
Charles Wilson
libpng volunteer maintainer for cygwin

To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page.  This downloads setup.exe to your
system.  Then, run setup and answer all of the questions.

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