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USN-4141-1: Exim vulnerability

28 September 2019

Exim could be made to crash or run programs if it received specially crafted network traffic.



  • exim4 - Exim is a mail transport agent


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

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