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USN-3928-1: Dovecot vulnerability

1 April 2019

Dovecot could be made to crash or run programs as an administrator if it opened a specially crafted file.



  • dovecot - IMAP and POP3 email server


It was discovered that Dovecot incorrectly handled reading certain headers
from the index. A local attacker could possibly use this issue to escalate

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.