USN-3587-1: Dovecot vulnerabilities

Ubuntu Security Notice USN-3587-1

5th March, 2018

dovecot vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 17.10
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Dovecot.

Software description

• dovecot - IMAP and POP3 email server

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)

Update instructions

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

Ubuntu 17.10:

dovecot-core 1:2.2.27-3ubuntu1.3

Ubuntu 16.04 LTS:

dovecot-core 1:2.2.22-1ubuntu2.7

Ubuntu 14.04 LTS:

dovecot-core 1:2.2.9-1ubuntu2.4

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2017-14461, CVE-2017-15130

from Ubuntu Security Notices http://ift.tt/2tkOLtY