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USN-4110-2: Dovecot vulnerability

28 August 2019

Dovecot could be made to crash or execute arbitrary code if it received a specially crafted data.

Releases

Packages

  • dovecot - IMAP and POP3 email server

Details

USN-4110-1 fixed a vulnerability in Dovecot. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

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 14.04
Ubuntu 12.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-4110-3: dovecot-core, dovecot-submissiond, dovecot-mysql, dovecot-sqlite, dovecot-imapd, dovecot-pgsql, dovecot-pop3d, dovecot-managesieved, dovecot-lucene, dovecot, dovecot-solr, mail-stack-delivery, dovecot-gssapi, dovecot-dev, dovecot-auth-lua, dovecot-ldap, dovecot-sieve, dovecot-lmtpd
  • USN-4110-4: dovecot-core, dovecot-postfix, dovecot-mysql, dovecot-sqlite, dovecot-imapd, dovecot-pgsql, dovecot-pop3d, dovecot-managesieved, dovecot, dovecot-solr, dovecot-gssapi, mail-stack-delivery, dovecot-dev, dovecot-common, dovecot-ldap, dovecot-sieve, dovecot-lmtpd
  • USN-4110-1: dovecot-core, dovecot-submissiond, dovecot-mysql, dovecot-sqlite, dovecot-imapd, dovecot-pgsql, dovecot-pop3d, dovecot-managesieved, dovecot-lucene, dovecot, dovecot-solr, mail-stack-delivery, dovecot-gssapi, dovecot-dev, dovecot-auth-lua, dovecot-ldap, dovecot-sieve, dovecot-lmtpd