Dovecot regression
A security issue affects these releases of Ubuntu and its derivatives:
USN-4110-1 introduced a regression in Dovecot.
Software Description
USN-4110-1 fixed a vulnerability in Dovecot. The update introduced a regression causing a wrong check. This update fixes the problem.
We apologize for the inconvenience.
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 19.04
dovecot-core - 1:2.3.4.1-1ubuntu2.4
Ubuntu 18.04 LTS
dovecot-core - 1:2.2.33.2-1ubuntu4.5
Ubuntu 16.04 LTS
dovecot-core - 1:2.2.22-1ubuntu2.12
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
Continue reading...
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
USN-4110-1 introduced a regression in Dovecot.
Software Description
- dovecot - IMAP and POP3 email server
USN-4110-1 fixed a vulnerability in Dovecot. The update introduced a regression causing a wrong check. This update fixes the problem.
We apologize for the inconvenience.
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 19.04
dovecot-core - 1:2.3.4.1-1ubuntu2.4
Ubuntu 18.04 LTS
dovecot-core - 1:2.2.33.2-1ubuntu4.5
Ubuntu 16.04 LTS
dovecot-core - 1:2.2.22-1ubuntu2.12
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
Continue reading...