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Ubuntu Security Notice USN-2213-1
May 15, 2014
dovecot vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 LTS
– Ubuntu 13.10
– Ubuntu 12.10
– Ubuntu 12.04 LTS
– Ubuntu 10.04 LTS
Summary:
Dovecot could be made to stop responding if it received specially crafted
network traffic.
Software Description:
– dovecot: IMAP and POP3 email server
Details:
It was discovered that Dovecot incorrectly handled closing inactive SSL/TLS
connections. A remote attacker could use this issue to cause Dovecot to
stop responding to new connections, resulting in a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
dovecot-core 1:2.2.9-1ubuntu2.1
dovecot-imapd 1:2.2.9-1ubuntu2.1
dovecot-pop3d 1:2.2.9-1ubuntu2.1
Ubuntu 13.10:
dovecot-core 1:2.1.7-7ubuntu3.1
dovecot-imapd 1:2.1.7-7ubuntu3.1
dovecot-pop3d 1:2.1.7-7ubuntu3.1
Ubuntu 12.10:
dovecot-core 1:2.1.7-1ubuntu2.1
dovecot-imapd 1:2.1.7-1ubuntu2.1
dovecot-pop3d 1:2.1.7-1ubuntu2.1
Ubuntu 12.04 LTS:
dovecot-core 1:2.0.19-0ubuntu2.1
dovecot-imapd 1:2.0.19-0ubuntu2.1
dovecot-pop3d 1:2.0.19-0ubuntu2.1
Ubuntu 10.04 LTS:
dovecot-imapd 1:1.2.9-1ubuntu6.6
dovecot-pop3d 1:1.2.9-1ubuntu6.6
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2213-1
CVE-2014-3430
Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.9-1ubuntu2.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.1.7-7ubuntu3.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.1.7-1ubuntu2.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.0.19-0ubuntu2.1
https://launchpad.net/ubuntu/+source/dovecot/1:1.2.9-1ubuntu6.6
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