mutt: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2194
               USN-4403-1: Mutt vulnerability and regression
                               25 June 2020

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           mutt
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Provide Misleading Information -- Remote/Unauthenticated
                   Access Confidential Data       -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-14954  

Reference:         ESB-2020.2142

Original Bulletin: 
   https://usn.ubuntu.com/4403-1/

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USN-4403-1: Mutt vulnerability and regression
24 June 2020

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

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

Summary

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

Software Description

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

Details

It was discovered that Mutt incorrectly handled certain requests. An attacker
could possibly use this issue to enable MITM attacks. (CVE-2020-14954)

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
    mutt - 1.13.2-1ubuntu0.2
Ubuntu 19.10
    mutt - 1.10.1-2.1ubuntu0.2
Ubuntu 18.04 LTS
    mutt - 1.9.4-3ubuntu0.3
Ubuntu 16.04 LTS
    mutt - 1.5.24-1ubuntu0.4
Ubuntu 12.04 ESM
    mutt - 1.5.21-5ubuntu2.5

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o CVE-2020-14954
  o LP: 1884588

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