php5 - several vulnerabilities

Several remote vulnerabilities have been discovered in PHP 5, an hypertext
preprocessor.
The Common Vulnerabilities and Exposures project identifies the following
problems:

• CVE-2010-1917
  The fnmatch function can be abused to conduct denial of service attacks
  (by crashing the interpreter) by the means of a stack overflow.
• CVE-2010-2225
  The SplObjectStorage unserializer allows attackers to execute arbitrary
  code via serialized data by the means of a use-after-free
  vulnerability.
• CVE-2010-3065
  The default sessions serializer does not correctly handle a special
  marker, which allows an attacker to inject arbitrary variables into the
  session and possibly exploit vulnerabilities in the unserializer.
• CVE-2010-1128
  For this vulnerability (predictable entropy for the Linear Congruential
  Generator used to generate session ids) we do not consider upstream’s
  solution to be sufficient. It is recommended to uncomment the
  session.entropy_file and session.entropy_length settings in the php.ini
  files. Further improvements can be achieved by setting
  session.hash_function to 1 (one) and incrementing the value of
  session.entropy_length.

For the stable distribution (lenny), these problems have been fixed in
version 5.2.6.dfsg.1-1+lenny9.

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

We recommend that you upgrade your php5 packages.