CVE-2020-28896

Published: 23 November 2020

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Priority

Medium

CVSS 3 base score: 5.3

Status

Package Release Status
mutt
Launchpad, Ubuntu, Debian
Upstream
Released (2.0.2-1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable

Ubuntu 20.10 (Groovy Gorilla)
Released (1.14.6-1ubuntu0.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (1.13.2-1ubuntu0.3)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.9.4-3ubuntu0.4)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (1.5.24-1ubuntu0.5)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a
neomutt
Launchpad, Ubuntu, Debian
Upstream
Released (20201120+dfsg.1-1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(20201120+dfsg.1-1)
Ubuntu 20.10 (Groovy Gorilla) Needs triage

Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06