CVE Vulnerability

CVE-2020-28896

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.

2.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 4.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/neomutt/neomutt/commit/9c36717a3e2af1f2c1b7242035455ec8112b4b06 Patch Third Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/d92689088dfe80a290ec836e292376e2d9984f8f Patch Third Party Advisory
https://github.com/neomutt/neomutt/releases/tag/20201120 Release Notes Third Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/04b06aaa3e0cc0022b9b01dbca2863756ebbf59a Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202101-32 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:neomutt:neomutt:*:*:*:*:*:*:*:*
cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2020-11-23 07:15

Updated : 2021-07-21 11:39

NVD link : CVE-2020-28896

Mitre link : CVE-2020-28896

Products Affected
No products.
CWE
CWE-287

CWE-755