USN-4403-1: Mutt vulnerability and regression
24 June 2020
Mutt could be made to enable MITM attacks if it received a specially crafted request.
- mutt - text-based mailreader supporting MIME, GPG, PGP and threading
It was discovered that Mutt incorrectly handled certain requests.
An attacker could possibly use this issue to enable MITM attacks.
This update also address a regression caused in the last update USN-4401-1.
It only affected Ubuntu 12.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10.
The problem can be corrected by updating your system to the following package versions:
After a standard system update you need to restart mutt to make
all the necessary changes.