1. Ubuntu Security Notices
  2. USN-4703-1

USN-4703-1: Mutt vulnerability

Publication date

25 January 2021

Overview

Mutt could be made to denial of service if it received a specially crafted email message.

Releases

Packages

  • mutt - text-based mailreader supporting MIME, GPG, PGP and threading

Details

It was discovered that Mutt incorrectly handled certain email messages.
An attacker could possibly use this issue to cause a denial of service.

It was discovered that Mutt incorrectly handled certain email messages.
An attacker could possibly use this issue to cause a denial of service.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.10 groovy mutt –  1.14.6-1ubuntu0.2
20.04 focal mutt –  1.13.2-1ubuntu0.4
18.04 bionic mutt –  1.9.4-3ubuntu0.5
16.04 xenial mutt –  1.5.24-1ubuntu0.6

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›