This update for zeromq fixes the following issues:
- CVE-2020-15166: Fixed the possibility of unauthenticated clients causing a denial-of-service (bsc#1176116). - Fixed a heap overflow when receiving malformed ZMTP v1 packets (bsc#1176256) - Fixed a memory leak in client induced by malicious server(s) without CURVE/ZAP (bsc#1176257) - Fixed memory leak when processing PUB messages with metadata (bsc#1176259) - Fixed a stack overflow in PUB/XPUB subscription store (bsc#1176258)