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.
https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06
https://github.com/neomutt/neomutt/releases/tag/20201120
https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a
https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d9984f8f
https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html
Source: MITRE
Published: 2020-11-23
Updated: 2021-01-28
Type: CWE-522
Base Score: 2.6
Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 4.9
Severity: LOW
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 1.6
Severity: MEDIUM
ID | Name | Product | Family | Severity |
---|---|---|---|---|
148056 | EulerOS 2.0 SP5 : mutt (EulerOS-SA-2021-1690) | Nessus | Huawei Local Security Checks | low |
146703 | EulerOS 2.0 SP2 : mutt (EulerOS-SA-2021-1330) | Nessus | Huawei Local Security Checks | medium |
145489 | GLSA-202101-32 : Mutt, NeoMutt: Information disclosure | Nessus | Gentoo Local Security Checks | low |
145134 | EulerOS 2.0 SP3 : mutt (EulerOS-SA-2021-1098) | Nessus | Huawei Local Security Checks | low |
143804 | SUSE SLES12 Security Update : mutt (SUSE-SU-2020:3632-1) | Nessus | SuSE Local Security Checks | low |
143769 | SUSE SLED15 / SLES15 Security Update : mutt (SUSE-SU-2020:3568-1) | Nessus | SuSE Local Security Checks | low |
143499 | openSUSE Security Update : mutt (openSUSE-2020-2128) | Nessus | SuSE Local Security Checks | low |
143463 | openSUSE Security Update : mutt (openSUSE-2020-2141) | Nessus | SuSE Local Security Checks | low |
143462 | openSUSE Security Update : neomutt (openSUSE-2020-2127) | Nessus | SuSE Local Security Checks | medium |
143392 | Debian DLA-2472-1 : mutt security update | Nessus | Debian Local Security Checks | low |
143264 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : Mutt vulnerability (USN-4645-1) | Nessus | Ubuntu Local Security Checks | low |
143256 | Slackware 14.0 / 14.1 / 14.2 / current : mutt (SSA:2020-329-01) | Nessus | Slackware Local Security Checks | low |
143172 | FreeBSD : mutt -- authentication credentials being sent over an unencrypted connection (dc132c91-2b71-11eb-8cfd-4437e6ad11c4) | Nessus | FreeBSD Local Security Checks | low |