CVE-2020-28896

EUVD-2020-21287
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
Affected Products (NVD)
VendorProductVersion
muttmutt
𝑥
< 2.0.2
neomuttneomutt
𝑥
< 2020-11-20
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mutt
bookworm
2.2.12-0.1~deb12u1
fixed
bookworm (security)
2.2.9-1+deb12u1
fixed
bullseye
2.0.5-4.1+deb11u3
fixed
bullseye (security)
2.0.5-4.1+deb11u3
fixed
sid
2.2.13-1
fixed
trixie
2.2.13-1
fixed
neomutt
bookworm
20220429+dfsg1-4.1
fixed
bullseye
20201127+dfsg.1-1.2
fixed
sid
20241002+dfsg-1
fixed
trixie
20241002+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mutt
bionic
Fixed 1.9.4-3ubuntu0.4
released
focal
Fixed 1.13.2-1ubuntu0.3
released
groovy
Fixed 1.14.6-1ubuntu0.1
released
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
Fixed 1.5.24-1ubuntu0.5
released
neomutt
bionic
needs-triage
focal
needs-triage
groovy
ignored
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
dne