USN-4141-1: Exim vulnerability
exim4 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04
Summary
Exim could be made to crash or run programs if it received specially
crafted network traffic.
Software Description
- exim4 – Exim is a mail transport agent
Details
It was discovered that Exim incorrectly handled certain string operations.
A remote attacker could use this issue to cause Exim to crash, resulting in
a denial of service, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 19.04
- exim4-daemon-heavy – 4.92-4ubuntu1.4
- exim4-daemon-light – 4.92-4ubuntu1.4
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
Source: USN-4141-1: Exim vulnerability
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