Security update for PHP5 (important)

This update of php5 fixes multiple security flaws:

• CVE-2011-4153, missing checks of return values could
  allow remote attackers to cause a denial of service (NULL
  pointer dereference)
• CVE-2011-4885, denial of service via hash collisions
• CVE-2012-0057, specially crafted XSLT stylesheets
  could allow remote attackers to create arbitrary files with
  arbitrary content
• CVE-2012-0781, remote attackers can cause a denial of
  service via specially crafted input to an application that
  attempts to perform Tidy::diagnose operations
• CVE-2012-0788, applications that use a PDO driver
  were prone to denial of service flaws which could be
  exploited remotely
• CVE-2012-0789, memory leak in the timezone
  functionality could allow remote attackers to cause a
  denial of service (memory consumption)
• CVE-2012-0807, a stack based buffer overflow in
  php5’s Suhosin extension could allow remote attackers to
  execute arbitrary code via a long string that is used in a
  Set-Cookie HTTP header
• CVE-2012-0830, this fixes an incorrect fix for
  CVE-2011-4885 which could allow remote attackers to execute
  arbitrary code via a request containing a large number of
  variables
• CVE-2012-0831, temporary changes to the
  magic_quotes_gpc directive during the importing of
  environment variables is not properly performed which makes
  it easier for remote attackers to conduct SQL injections