php4 - several vulnerabilities

Two vulnerabilities were discovered in php4:

• CAN-2004-0594
  The memory_limit functionality in PHP 4.x up to
  4.3.7, and 5.x up to 5.0.0RC3, under certain conditions such as
  when register_globals is enabled, allows remote attackers to
  execute arbitrary code by triggering a memory_limit abort during
  execution of the zend_hash_init function and overwriting a
  HashTable destructor pointer before the initialization of key data
  structures is complete.

• CAN-2004-0595
  The strip_tags function in PHP 4.x up to 4.3.7, and
  5.x up to 5.0.0RC3, does not filter null (\0) characters within tag
  names when restricting input to allowed tags, which allows
  dangerous tags to be processed by web browsers such as Internet
  Explorer and Safari, which ignore null characters and facilitate
  the exploitation of cross-site scripting (XSS) vulnerabilities.

For the current stable distribution (woody), these problems have been
fixed in version 4.1.2-7.

For the unstable distribution (sid), these problems have been fixed in
version 4:4.3.8-1.

We recommend that you update your php4 package.