What is Escalations Supplement erg712629c, the UnixWare fs and namefs
driver update?


Problem Fixed
-------------

  1. Fixed panic that can sometimes occur due to race condition between
     fdetach of a named pipe and the last close on the pipe's file
     descriptors.
     Ref. erg711929 erg712629 fz519727

  2. SECURITY: A new file system tunable, CHROOT_SECURITY is provided
     to protect against a known exploit for escaping from a chroot
     prison.  The new tunable is described in /etc/conf/dtune.d/fs
     and defined in /etc/conf/mtune.d/fs.  Protection is provided by
     the defaault value of 1 but traditional behavior may be obtained
     by resetting CHROOT_SECURITY to 0.
     Ref. erg712509 fz528555


Contents
--------

  /etc/conf/dtune.d/fs
  /etc/conf/mtune.d/fs
  /etc/conf/pack.d/fs/Driver_atup.o
  /etc/conf/pack.d/fs/Driver_mp.o
  /etc/conf/pack.d/fs/space.c
  /etc/conf/pack.d/namefs/Driver_atup.o
  /etc/conf/pack.d/namefs/Driver_mp.o
  /usr/include/sys/vfs.h


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

  erg712629c should only be installed on:

  UnixWare 7.1.4


Warning
-------

  This package is produced by the SCO Escalations Research Group and is
  not intended for general distribution.  It has been produced to
  address a particular problem and has not been tested in all system
  configurations.


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

  1. Download the erg712629c.Z file 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>
     # zcat /tmp/erg712629c.Z | pkgadd -d -

     Alternatively, this package may be installed in quiet mode, that is,
     without displaying the release notes and asking for confirmation.
     To do this, use these commands:

     $ su -
     Password: <type your root password>
     # zcat /tmp/erg712629c.Z | pkgadd -qd - all

  3. Reboot the system after installing this package.


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

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

     $ su -
     Password: <type your root password>
     # pkgrm erg712629

  2. Reboot the system after removing this package.

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