[Dovecot-news] Pigeonhole v0.5.15 released

Pigeonhole release for Dovecot v2.3.15.
One thing we noticed a bit before release is that if you’re using imap_sieve_filter plugin, the IMAP FILTER command may trigger the new excessive resource usage check since it can be processing many messages rapidly. You may want to prevent this with protocol imap { sieve_max_cpu_time=0 }
pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.15.tar.gz <pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.15.tar.gz> pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.15.tar.gz.sig <pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.15.tar.gz.sig>
Binary packages in repo.dovecot.org/ <repo.dovecot.org/> Docker images in hub.docker.com/r/dovecot/dovecot <hub.docker.com/r/dovecot/dovecot>
* CVE-2020-28200: Sieve interpreter is not protected against abusive scripts that claim excessive resource usage. Fixed by limiting the user CPU time per single script execution and cumulatively over several script runs within a configurable timeout period. Sufficiently large CPU time usage is summed in the Sieve script binary and execution is blocked when the sum exceeds the limit within that time. The block is lifted when the script is updated after the resource usage times out. * Disconnection log messages are now more standardized across services. They also always now start with “Disconnected” prefix. – managesieve: Commands pipelined together with and just after the authenticate command cause these commands to be executed twice.
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