[USN-2213-1] Dovecot vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Thu May 15 15:02:00 UTC 2014

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


Dovecot could be made to stop responding if it received specially crafted
network traffic.

Software Description:
- dovecot: IMAP and POP3 email server


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.


Package Information:

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