Univention Corporate Server 4.2 erratum 124 (bugfix)

This update addresses the following issue(s):
* crudesaml has been updated to version 1.8. This corrects a segmentation
  fault in slapd which occurs during SAML authentication at the UMC server
  if the certificates are expired.
* A segmentation fault in pam-saml has been corrected, which caused the UMC
  server to crash in certain situations during loading of identity provider
  metadata.