Security update for nginx

This update for nginx fixes the following issues:

- CVE-2021-23017: nginx DNS resolver off-by-one heap write (bsc#1186126)

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Fixed bugs
bnc#1186126
VUL-0: CVE-2021-23017: nginx: Off-by-One Heap Write Vulnerability
Selected Binaries
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