Security update for dovecot23

This update for dovecot23 fixes the following issue:

Security issue fixed:

- CVE-2019-7524: Fixed an improper file handling which could result in stack oveflow allowing
local root escalation (bsc#1130116).

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

Fixed bugs
bnc#1130116
VUL-0: EMBARGOED: CVE-2019-7524: dovecot,dovecot23,dovecot22: FTS or POP3-UIDL header from dovecot index overflow
Selected Binaries
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