USN-3258-1: Dovecot vulnerability
Ubuntu Security Notice USN-3258-1
10th April, 2017
dovecot vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
Summary
Dovecot could be made to crash if it received specially crafted input.
Software description
- dovecot
– IMAP and POP3 email server
Details
It was discovered that Dovecot incorrectly handled some usernames. An attacker
could possibly use this issue to cause Dovecot to hang or crash, resulting in a
denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.10:
-
dovecot-core
1:2.2.24-1ubuntu1.2
- Ubuntu 16.04 LTS:
-
dovecot-core
1:2.2.22-1ubuntu2.3
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
Source: USN-3258-1: Dovecot vulnerability
