exim4 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
Exim could be made to run programs as an administrator if it received specially crafted network traffic.
Software Description
Jeremy Harris discovered that Exim incorrectly handled sort expansions. In environments where sort expansions are used, a remote attacker could possibly use this issue to execute arbitrary code as root.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.04
exim4-daemon-heavy - 4.92-4ubuntu1.2
exim4-daemon-light - 4.92-4ubuntu1.2
Ubuntu 18.04 LTS
exim4-daemon-heavy - 4.90.1-1ubuntu1.3
exim4-daemon-light - 4.90.1-1ubuntu1.3
Ubuntu 16.04 LTS
exim4-daemon-heavy - 4.86.2-2ubuntu2.4
exim4-daemon-light - 4.86.2-2ubuntu2.4
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
Exim could be made to run programs as an administrator if it received specially crafted network traffic.
Software Description
- exim4 - Exim is a mail transport agent
Jeremy Harris discovered that Exim incorrectly handled sort expansions. In environments where sort expansions are used, a remote attacker could possibly use this issue to execute arbitrary code as root.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.04
exim4-daemon-heavy - 4.92-4ubuntu1.2
exim4-daemon-light - 4.92-4ubuntu1.2
Ubuntu 18.04 LTS
exim4-daemon-heavy - 4.90.1-1ubuntu1.3
exim4-daemon-light - 4.90.1-1ubuntu1.3
Ubuntu 16.04 LTS
exim4-daemon-heavy - 4.86.2-2ubuntu2.4
exim4-daemon-light - 4.86.2-2ubuntu2.4
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...
