Fedora 30 Dovecot Security Update: Critical Buffer Overflow and DoS

Dovecot is an IMAP server for Linux/UNIX-like systems, written with security

primarily in mind. It also contains a small POP3 server. It supports mail

in either of maildir or mbox formats.

The SQL drivers and authentication plug-ins are in their subpackages.

dovecot updated to 2.3.6, includes several security fixes

* Fri May 31 2019 Michal Hlavinka - 1:2.3.6-3

- disable gcc 9 stack reuse temporarily

* Mon May 13 2019 Michal Hlavinka - 1:2.3.6-2

- use /run instead of /var/run (#1706372)

* Thu May 2 2019 Michal Hlavinka - 1:2.3.6-1

- dovecot updated to 2.3.6, pigeonhole updated to 0.5.6

* Thu Apr 18 2019 Michal Hlavinka - 1:2.3.5.2-1

- dovecot updated to 2.3.5.2

- fixes CVE-2019-10691: Trying to login with 8bit username containing

invalid UTF8 input causes auth process to crash if auth policy is enabled.

* Thu Mar 28 2019 Michal Hlavinka - 1:2.3.5.1-1

- dovecot updated to 2.3.5.1

- CVE-2019-7524: Missing input buffer size validation leads into

arbitrary buffer overflow when reading fts or pop3 uidl header

from Dovecot index.

* Wed Mar 6 2019 Michal Hlavinka - 1:2.3.5-1

- dovecot updated to 2.3.5, pigeonhole updated to 0.5.5

* Thu Jan 31 2019 Fedora Release Engineering - 1:2.3.4-3

- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild

[ 1 ] Bug #1696156 - CVE-2019-7524 dovecot: buffer overflow in indexer-worker process results in privilege escalation [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1696156

[ 2 ] Bug #1673416 - CVE-2019-3814 dovecot: Improper certificate validation [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1673416

[ 3 ] Bug #1659785 - [RFE] Build dovecot with libsodium support

https://bugzilla.redhat.com/show_bug.cgi?id=1659785

[ 4 ] Bug #1709245 - CVE-2019-11494 dovecot: premature disconnection from client during AUTH command leads to crash and possible DoS [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1709245

[ 5 ] Bug #1709241 - CVE-2019-11499 dovecot: unacceptable authentication message in AUTH PLAIN over TLS leads to crash and possible DoS [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1709241

[ 6 ] Bug #1705283 - F29 -> F30 (server): Problems with dovecot/auth against mariadb

https://bugzilla.redhat.com/show_bug.cgi?id=1705283

su -c 'dnf upgrade --advisory FEDORA-2019-9e004decea' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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