Security update for php7

Open Source Vulnerabilities SUSE-SU-2017:2468-1

This update for php7 fixes several issues. These security issues were fixed: - CVE-2017-12932: Prevent heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue could have had an unspecified impact on the integrity of PHP (bsc#1054432). - CVE-2017-12934: Prevent heap use after free while unserializing untrusted data, related to the zval_get_type function in Zend/zend_types.h. Exploitation of this issue could have had an unspecified impact on the integrity of PHP (bsc#1054408). - CVE-2017-12933: The finish_nested_data function in ext/standard/var_unserializer.re was prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue could have had an unspecified impact on the integrity of PHP (bsc#1054430) These non-security issues were fixed: - bsc#1057104: php7-devel now requires php7-pear - bsc#1057845: Fixed namespace encapsulation of imported classes/functions/constants