USN-4110-3: Dovecot regression
28 August 2019
USN-4110-1 introduced a regression in Dovecot.
Releases
Packages
- dovecot - IMAP and POP3 email server
Details
USN-4110-1 fixed a vulnerability in Dovecot. The update introduced a
regression causing a wrong check. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Nick Roessler and Rafi Rubin discovered that Dovecot incorrectly
handled certain data. An attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.04
Ubuntu 18.04
Ubuntu 16.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-4110-4: dovecot-core, dovecot-pgsql, dovecot-pop3d, dovecot-postfix, dovecot-common, dovecot-managesieved, dovecot-sieve, dovecot-sqlite, dovecot-imapd, mail-stack-delivery, dovecot-mysql, dovecot-gssapi, dovecot, dovecot-lmtpd, dovecot-ldap, dovecot-dev, dovecot-solr
- USN-4110-1: dovecot-auth-lua, dovecot-core, dovecot-pgsql, dovecot-pop3d, dovecot-managesieved, dovecot-sieve, dovecot-submissiond, dovecot-sqlite, dovecot-imapd, mail-stack-delivery, dovecot-mysql, dovecot-gssapi, dovecot, dovecot-lmtpd, dovecot-lucene, dovecot-ldap, dovecot-dev, dovecot-solr
- USN-4110-2: dovecot-core, dovecot-pgsql, dovecot-pop3d, dovecot-postfix, dovecot-common, dovecot-managesieved, dovecot-sieve, dovecot-sqlite, dovecot-imapd, mail-stack-delivery, dovecot-mysql, dovecot-gssapi, dovecot, dovecot-lmtpd, dovecot-ldap, dovecot-dev, dovecot-solr