Security update for openvpn

This update for openvpn fixes the following issues:

- CVE-2018-9336: Fix potential double-free() in Interactive Service could lead to denial of service (bsc#1090839).

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

Fixed bugs
bnc#1090839
VUL-0: CVE-2018-9336: openvpn-openssl1,openvpn: potential double-free() in Interactive Service
Selected Binaries
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