This update for apache2 provides the following fixes:
Security issues fixed:
CVE-2017-9788: The value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by modauthdigest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service. (bsc#1048576)
CVE-2017-7679: mod_mime could have read one byte past the end of a buffer when sending a malicious Content-Type response header leading to information leak or crash. (bsc#1045060)
CVE-2017-3169: modssl may have dereferenced a NULL pointer when third-party modules call aphookprocessconnection() during an HTTP request to an HTTPS port leading to crash. (bsc#1045062)
CVE-2017-3167: Use of the apgetbasicauthpw() by third-party modules outside of the authentication phase may have lead to authentication requirements being bypassed. (bsc#1045065)
Non-security issues fixed:
Re-order cipher suites to keep exclusion list at the end. (bsc#1043484, bsc#1043607)
Remove /usr/bin/http2 link only during apache2 package uninstall, not upgrade. (bsc#1041830)
In gensslcert, use hostname when fqdn is too long. (bsc#1035829)