UBUNTU-CVE-2020-12398

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2020-12398
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12398.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-12398
Upstream
Downstream
Related
Published
2020-06-09T00:00:00Z
Modified
2025-09-08T16:46:06Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:16.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:68.10.0+build1-0ubuntu0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:68.10.0+build1-0ubuntu0.16.04.1

Affected versions

1:38.*

1:38.3.0+build1-0ubuntu2
1:38.5.1+build2-0ubuntu1
1:38.6.0+build1-0ubuntu1
1:38.7.2+build1-0ubuntu0.16.04.1
1:38.8.0+build1-0ubuntu0.16.04.1

1:45.*

1:45.2.0+build1-0ubuntu0.16.04.1
1:45.3.0+build1-0ubuntu0.16.04.2
1:45.4.0+build1-0ubuntu0.16.04.1
1:45.5.1+build1-0ubuntu0.16.04.1
1:45.7.0+build1-0ubuntu0.16.04.1
1:45.8.0+build1-0ubuntu0.16.04.1

1:52.*

1:52.1.1+build1-0ubuntu0.16.04.1
1:52.2.1+build1-0ubuntu0.16.04.1
1:52.3.0+build1-0ubuntu0.16.04.1
1:52.4.0+build1-0ubuntu0.16.04.2
1:52.5.0+build1-0ubuntu0.16.04.1
1:52.6.0+build1-0ubuntu0.16.04.1
1:52.7.0+build1-0ubuntu0.16.04.1
1:52.8.0+build1-0ubuntu0.16.04.1
1:52.9.1+build3-0ubuntu0.16.04.1

1:60.*

1:60.2.1+build1-0ubuntu0.16.04.4
1:60.4.0+build2-0ubuntu0.16.04.1
1:60.5.1+build2-0ubuntu0.16.04.1
1:60.6.1+build2-0ubuntu0.16.04.1
1:60.7.0+build1-0ubuntu0.16.04.1
1:60.7.1+build1-0ubuntu0.16.04.1
1:60.7.2+build2-0ubuntu0.16.04.1
1:60.8.0+build1-0ubuntu0.16.04.2
1:60.9.0+build1-0ubuntu0.16.04.2
1:60.9.1+build1-0ubuntu0.16.04.1

1:68.*

1:68.7.0+build1-0ubuntu0.16.04.2
1:68.8.0+build2-0ubuntu0.16.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "thunderbird"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-dev"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-gnome-support"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-mozsymbols"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "xul-ext-calendar-timezones"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "xul-ext-gdata-provider"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.16.04.1",
            "binary_name": "xul-ext-lightning"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:68.10.0+build1-0ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:68.10.0+build1-0ubuntu0.18.04.1

Affected versions

1:52.*

1:52.4.0+build1-0ubuntu2
1:52.6.0+build1-0ubuntu1
1:52.7.0+build1-0ubuntu1
1:52.8.0+build1-0ubuntu0.18.04.1
1:52.9.1+build3-0ubuntu0.18.04.1

1:60.*

1:60.2.1+build1-0ubuntu0.18.04.2
1:60.4.0+build2-0ubuntu0.18.04.1
1:60.5.1+build2-0ubuntu0.18.04.1
1:60.6.1+build2-0ubuntu0.18.04.1
1:60.7.0+build1-0ubuntu0.18.04.1
1:60.7.1+build1-0ubuntu0.18.04.1
1:60.7.2+build2-0ubuntu0.18.04.1
1:60.8.0+build1-0ubuntu0.18.04.1
1:60.9.0+build1-0ubuntu0.18.04.1

1:68.*

1:68.2.1+build1-0ubuntu0.18.04.1
1:68.2.2+build1-0ubuntu0.18.04.1
1:68.4.1+build1-0ubuntu0.18.04.1
1:68.7.0+build1-0ubuntu0.18.04.1
1:68.8.0+build2-0ubuntu0.18.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "thunderbird"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-dev"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-gnome-support"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-mozsymbols"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "xul-ext-calendar-timezones"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "xul-ext-gdata-provider"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.18.04.1",
            "binary_name": "xul-ext-lightning"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:68.10.0+build1-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:68.10.0+build1-0ubuntu0.20.04.1

Affected versions

1:68.*

1:68.1.2+build1-0ubuntu1
1:68.1.2+build1-0ubuntu2
1:68.2.1+build1-0ubuntu1
1:68.2.2+build1-0ubuntu1
1:68.3.0+build2-0ubuntu1
1:68.3.1+build1-0ubuntu2
1:68.4.1+build1-0ubuntu1
1:68.4.2+build2-0ubuntu1
1:68.5.0+build1-0ubuntu1
1:68.6.0+build2-0ubuntu1
1:68.7.0+build1-0ubuntu1
1:68.7.0+build1-0ubuntu2
1:68.8.0+build2-0ubuntu0.20.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "thunderbird"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "thunderbird-dev"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "thunderbird-gnome-support"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "thunderbird-mozsymbols"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "xul-ext-calendar-timezones"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "xul-ext-gdata-provider"
        },
        {
            "binary_version": "1:68.10.0+build1-0ubuntu0.20.04.1",
            "binary_name": "xul-ext-lightning"
        }
    ],
    "availability": "No subscription required"
}