Debian: DSA-4510-1: dovecot security update
Summary
For the oldstable distribution (stretch), this problem has been fixed
in version 1:2.2.27-3+deb9u5.
For the stable distribution (buster), this problem has been fixed in
version 1:2.3.4.1-5+deb10u1.
We recommend that you upgrade your dovecot packages.
For the detailed security status of dovecot please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/source-package/dovecot
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org