USN-4403-1: Mutt vulnerability and regression

USN-4403-1: Mutt vulnerability and regression

mutt vulnerability and regression

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

  • Ubuntu 20.04 LTS
  • Ubuntu 19.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 12.04 ESM


Mutt could be made to enable MITM attacks if it received a specially crafted

Software Description

  • 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.

Update instructions

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

Ubuntu 20.04 LTS
Ubuntu 19.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS
Ubuntu 12.04 ESM
mutt – 1.5.21-5ubuntu2.5

To update your system, please follow these instructions:

After a standard system update you need to restart mutt to make
all the necessary changes.


Source: USN-4403-1: Mutt vulnerability and regression

About KENNETH 13404 Articles

Be the first to comment

Leave a Reply

Your email address will not be published.


이 사이트는 스팸을 줄이는 아키스밋을 사용합니다. 댓글이 어떻게 처리되는지 알아보십시오.