USN-4110-2: Dovecot vulnerability
dovecot vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary
Dovecot could be made to crash or execute arbitrary code if it received
a specially crafted data.
Software Description
- dovecot – IMAP and POP3 email server
Details
USN-4110-1 fixed a vulnerability in Dovecot. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
Nick Roessler and Rafi Rubin discovered that Dovecot incorrectly
handled certain data. An attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 ESM
- dovecot-core – 1:2.2.9-1ubuntu2.6+esm1
- Ubuntu 12.04 ESM
- dovecot-core – 1:2.0.19-0ubuntu2.7
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-4110-2: Dovecot vulnerability
