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USN-4010-1: Exim vulnerability

USN-4010-1: Exim vulnerability

exim4 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

Summary

Exim could be made to run commands if it received specially crafted network
traffic.

Software Description

Details

It was discovered that Exim incorrectly handled certain decoding
operations. A remote attacker could possibly use this issue to execute
arbitrary commands.

Update instructions

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

Ubuntu 18.10
exim4-daemon-heavy4.91-6ubuntu1.1
exim4-daemon-light4.91-6ubuntu1.1
Ubuntu 18.04 LTS
exim4-daemon-heavy4.90.1-1ubuntu1.2
exim4-daemon-light4.90.1-1ubuntu1.2

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-4010-1: Exim vulnerability

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