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USN-3587-2: Dovecot vulnerabilities

2 April 2018

Several security issues were fixed in Dovecot.

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Releases

Packages

  • dovecot - IMAP and POP3 email server

Details

USN-3587-1 fixed a vulnerability in Dovecot. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that Dovecot incorrectly handled parsing certain email
addresses. A remote attacker could use this issue to cause Dovecot to
crash, resulting in a denial of service, or possibly obtain sensitive
information. (CVE-2017-14461)

It was discovered that Dovecot incorrectly handled TLS SNI config lookups.
A remote attacker could possibly use this issue to cause Dovecot to crash,
resulting in a denial of service. (CVE-2017-15130)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04

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

Related notices

  • USN-3587-1: dovecot-dev, dovecot-lucene, dovecot-gssapi, dovecot-pgsql, mail-stack-delivery, dovecot-lmtpd, dovecot-ldap, dovecot-core, dovecot-sieve, dovecot-mysql, dovecot-sqlite, dovecot, dovecot-imapd, dovecot-solr, dovecot-pop3d, dovecot-managesieved