USN-3928-1: Dovecot vulnerability
dovecot vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Dovecot could be made to crash or run programs as an administrator
if it opened a specially crafted file.
Software Description
- dovecot – IMAP and POP3 email server
Details
It was discovered that Dovecot incorrectly handled reading certain headers
from the index. A local attacker could possibly use this issue to escalate
privileges.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.10
- dovecot-core – 1:2.3.2.1-1ubuntu3.2
- Ubuntu 18.04 LTS
- dovecot-core – 1:2.2.33.2-1ubuntu4.3
- Ubuntu 16.04 LTS
- dovecot-core – 1:2.2.22-1ubuntu2.10
- Ubuntu 14.04 LTS
- dovecot-core – 1:2.2.9-1ubuntu2.6
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-3928-1: Dovecot vulnerability
