openSUSE Leap 42.3 Critical Alert: Remote DoS Vulnerability in libheimdal

This update for libheimdal to version 7.5.0 fixes the following issues:

The following security vulnerability was fixed:

- CVE-2017-17439: Fixed a remote denial of service vulnerability through

which remote unauthenticated attackers were able to crash the KDC by

sending a crafted UDP packet containing empty data fields for client

name or realm (boo#1071675)

The following other bugs were fixed:

- Override the build date (boo#1047218)

- Use constant hostname (boo#1084909)

- Handle long input lines when reloading database dumps

- In pre-forked mode, correctly clear the process ids of exited children,

allowing new child processes to replace the old.

- Fixed incorrect KDC response when no-cross realm TGT exists, allowing

client requests to fail quickly rather than time out after trying to get

a correct answer from each KDC.