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
Status
| Package | Release | Status |
|---|---|---|
|
mutt Launchpad, Ubuntu, Debian |
bionic |
Released
(1.9.4-3ubuntu0.4)
|
| focal |
Released
(1.13.2-1ubuntu0.3)
|
|
| groovy |
Released
(1.14.6-1ubuntu0.1)
|
|
| hirsute |
Not vulnerable
|
|
| impish |
Not vulnerable
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Not vulnerable
|
|
| precise |
Released
(1.5.21-5ubuntu2.6)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.0.2-1)
|
|
| xenial |
Released
(1.5.24-1ubuntu0.5)
|
|
|
Patches: upstream: https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a |
||
|
neomutt Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Not vulnerable
(20201120+dfsg.1-1)
|
|
| impish |
Not vulnerable
(20201120+dfsg.1-1)
|
|
| jammy |
Not vulnerable
(20201120+dfsg.1-1)
|
|
| kinetic |
Not vulnerable
(20201120+dfsg.1-1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(20201120+dfsg.1-1)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.3 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |