CVE-2020-12398

If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 49%
Affected Products (NVD)
VendorProductVersion
mozillathunderbird
𝑥
< 68.9.0
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
19.10
canonicalubuntu_linux
20.04
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
thunderbird
bookworm
1:115.12.0-1~deb12u1
fixed
bookworm (security)
1:128.4.0esr-1~deb12u1
fixed
bullseye
1:115.12.0-1~deb11u1
fixed
bullseye (security)
1:128.4.0esr-1~deb11u1
fixed
sid
1:128.4.0esr-1
fixed
trixie
1:128.4.0esr-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
thunderbird
bionic
Fixed 1:68.10.0+build1-0ubuntu0.18.04.1
released
eoan
Fixed 1:68.10.0+build1-0ubuntu0.19.10.1
released
focal
Fixed 1:68.10.0+build1-0ubuntu0.20.04.1
released
trusty
dne
xenial
Fixed 1:68.10.0+build1-0ubuntu0.16.04.1
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
MozillaThunderbird
suse enterprise desktop 15 SP1
68.9.0-3.85.2
fixed
suse enterprise desktop 15 SP2
68.9.0-3.85.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.23.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise sap 15 SP1
68.9.0-3.85.2
fixed
suse enterprise sap 15 SP2
68.9.0-3.85.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.23.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise server 15 SP1
68.9.0-3.85.2
fixed
suse enterprise server 15 SP2
68.9.0-3.85.2
fixed
suse enterprise server 15 SP3
78.10.0-8.23.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise workstation 15 SP1
68.9.0-3.85.2
fixed
suse enterprise workstation 15 SP2
68.9.0-3.85.2
fixed
suse enterprise workstation 15 SP3
78.10.0-8.23.1
fixed
suse enterprise workstation 15 SP4
91.8.0-150200.8.65.1
fixed
MozillaThunderbird-translations-common
suse enterprise desktop 15 SP1
68.9.0-3.85.2
fixed
suse enterprise desktop 15 SP2
68.9.0-3.85.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.23.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise sap 15 SP1
68.9.0-3.85.2
fixed
suse enterprise sap 15 SP2
68.9.0-3.85.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.23.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise server 15 SP1
68.9.0-3.85.2
fixed
suse enterprise server 15 SP2
68.9.0-3.85.2
fixed
suse enterprise server 15 SP3
78.10.0-8.23.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise workstation 15 SP1
68.9.0-3.85.2
fixed
suse enterprise workstation 15 SP2
68.9.0-3.85.2
fixed
suse enterprise workstation 15 SP3
78.10.0-8.23.1
fixed
suse enterprise workstation 15 SP4
91.8.0-150200.8.65.1
fixed
MozillaThunderbird-translations-other
suse enterprise desktop 15 SP1
68.9.0-3.85.2
fixed
suse enterprise desktop 15 SP2
68.9.0-3.85.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.23.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise sap 15 SP1
68.9.0-3.85.2
fixed
suse enterprise sap 15 SP2
68.9.0-3.85.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.23.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise server 15 SP1
68.9.0-3.85.2
fixed
suse enterprise server 15 SP2
68.9.0-3.85.2
fixed
suse enterprise server 15 SP3
78.10.0-8.23.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.8.65.1
fixed
suse enterprise workstation 15 SP1
68.9.0-3.85.2
fixed
suse enterprise workstation 15 SP2
68.9.0-3.85.2
fixed
suse enterprise workstation 15 SP3
78.10.0-8.23.1
fixed
suse enterprise workstation 15 SP4
91.8.0-150200.8.65.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
thunderbird
RHEL 6
0:68.9.0-1.el6_10
fixed
RHEL 7
0:68.9.0-1.el7_8
fixed