What is the UnixWare 7D zlib 1.2.12 Package?

The zlib 1.2.12 package is an updated zlib for UnixWare 7D that
addresses the following problems or new features.

Problems Fixed
--------------

Changes between zlib 1.2.11 and zlib 1.2.12

     * Fix a deflate bug when using the Z_FIXED strategy that can result
       in out-of-bound accesses. (CVE-2018-25032)
      * Fix a deflate bug when the window is full in deflate_stored().
      * Speed up CRC-32 computations by a factor of 1.5 to 3.
      * Use the hardware CRC-32 instruction on ARMv8 processors.
      * Speed up crc32_combine() with powers of x tables.
      * Add crc32_combine_gen() and crc32_combine_op() for fast combines.


Contents
--------

      zlib-1.2.12-UnixWare7D-i386.pkg.gz
      zlib-dev-1.2.12-UnixWare7D-i386.pkg.gz

MD5 (zlib-1.2.12-UnixWare7D-i386.pkg.gz) = 338364617180bb8ae7dd3d30de0f0ff7
MD5 (zlib-dev-1.2.12-UnixWare7D-i386.pkg.gz) = 1b6b744e824c66766d6da2ef63e3e46f

SHA256(zlib-1.2.12-UnixWare7D-i386.pkg.gz)= 2e62dc5cee9ba7a23adebd96660dcd7d973c88401447c3287d50ca1d64dff4bd
SHA256(zlib-dev-1.2.12-UnixWare7D-i386.pkg.gz)= 5fcabe48cccdca261072c29cb1b2166729ab1572c793343fba9b9f4a4826f2e7

Software Notes and Recommendations
----------------------------------

  The UW7D zlib 1.2.12 package is intended for installation on

        UnixWare 7 Definitive 2018 (also known as D2M1)


Installation Instructions
-------------------------

  1. Download zlib-1.2.12-UnixWare7D-i386.pkg.gz and
     zlib-dev-1.2.12-UnixWare7D-i386.pkg.gz files to the /tmp directory
     on your machine.

  2. As root, add the package to your system using these commands:

     $ su -
     Password: <type your root password>
     # gzcat /tmp/zlib-1.2.12-UnixWare7D-i386.pkg.gz | pkgadd -qd - all

     If you develop software using the zlib library, install the
     development package.
     # gzcat /tmp/zlib-dev-1.2.12-UnixWare7D-i386.pkg.gz | pkgadd -qd - all

  3. The system should be rebooted after installing this package to insure
     all the services using the /usr/lib/libz.so.1 library are restarted.

Removal Instructions
--------------------

  1. As root, remove the package using these commands:

     $ su -
     Password: <type your root password>
     # pkginfo -q zlib-dev && pkgrm zlib-dev
     # pkgrm zlib

  2. Your system does not contain a zlib after removal of this package.

     Note: removing zlib will break OpenSSH and any other software
           linked against the zlib library.

  If you have questions regarding this supplement, or the product on
  which it is installed, please contact your Xinuos software supplier.