SUSE: 2018:0901-1 Important: Apache2 Denial Of Service Issues

This update for apache2 fixes the following issues: * CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \"Session\" header leading to unexpected behavior [bsc#1086814]. * CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817] * CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813] * CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end