php5 - security update

Several vulnerabilities were found in PHP, a general-purpose scripting
language commonly used for web application development. The Common
Vulnerabilities and Exposures project identifies the following problems:

• CVE-2014-3538
  It was discovered that the original fix for CVE-2013-7345 did not
  sufficiently address the problem. A remote attacker could still
  cause a denial of service (CPU consumption) via a specially-crafted
  input file that triggers backtracking during processing of an awk
  regular expression rule.
• CVE-2014-3587
  It was discovered that the CDF parser of the fileinfo module does
  not properly process malformed files in the Composite Document File
  (CDF) format, leading to crashes.
• CVE-2014-3597
  It was discovered that the original fix for CVE-2014-4049 did not
  completely address the issue. A malicious server or
  man-in-the-middle attacker could cause a denial of service (crash)
  and possibly execute arbitrary code via a crafted DNS TXT record.
• CVE-2014-4670
  It was discovered that PHP incorrectly handled certain SPL
  Iterators. A local attacker could use this flaw to cause PHP to
  crash, resulting in a denial of service.

For the stable distribution (wheezy), these problems have been fixed in
version 5.4.4-14+deb7u13. In addition, this update contains several
bugfixes originally targeted for the upcoming Wheezy point release.

For the unstable distribution (sid), these problems will be fixed soon.

We recommend that you upgrade your php5 packages.