openSUSE-SU-2019:2613-1

Description of the patch:

This update for libidn2 to version 2.2.0 fixes the following issues:

• CVE-2019-12290: Fixed an improper round-trip check when converting A-labels to U-labels (bsc#1154884).
• CVE-2019-18224: Fixed a heap-based buffer overflow that was caused by long domain strings (bsc#1154887).

This update was imported from the SUSE:SLE-15:Update update project.