Security update for Apache2 (important)

This update of apache2 and libapr1 fixes regressions and
several security problems.

• CVE-2012-0031: Fixed a scoreboard corruption (shared
  mem segment) by child causes crash of privileged parent
  (invalid free()) during shutdown.
• CVE-2012-0053: Fixed an issue in error responses that
  could expose "httpOnly" cookies when no custom
  ErrorDocument is specified for status code 400".
• CVE-2007-6750: The "mod_reqtimeout" module was
  backported from Apache 2.2.21 to help mitigate the
  "Slowloris" Denial of Service attack.

You need to enable the "mod_reqtimeout" module in your
existing apache configuration to make it effective, e.g.
in the APACHE_MODULES line in /etc/sysconfig/apache2. For
more detailed information, check also the README file.

Also the following bugs have been fixed:

• Fixed init script action "check-reload" to avoid
  potential crashes. bnc#728876
• An overlapping memcpy() was replaced by memmove() to
  make this work with newer glibcs. bnc#738067 bnc#741874
• libapr1: reset errno to zero to not return previous
  value despite good status of new operation. bnc#739783