UBUNTU-CVE-2021-29969

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Source
https://ubuntu.com/security/CVE-2021-29969
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29969.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-29969
Upstream
Downstream
Related
Published
2021-08-05T20:15:00Z
Modified
2025-09-08T16:47:06Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn't exist on the IMAP server. This vulnerability affects Thunderbird < 78.12.

References

Affected packages

Ubuntu:18.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:78.13.0+build1-0ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:78.13.0+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
1:68.10.0+build1-0ubuntu0.18.04.1

1:78.*

1:78.8.1+build1-0ubuntu0.18.04.1
1:78.11.0+build1-0ubuntu0.18.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:78.13.0+build1-0ubuntu0.18.04.1"
        }
    ]
}

Ubuntu:20.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:78.13.0+build1-0ubuntu0.20.04.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:78.13.0+build1-0ubuntu0.20.04.2

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
1:68.10.0+build1-0ubuntu0.20.04.1

1:78.*

1:78.7.1+build1-0ubuntu0.20.04.1
1:78.8.1+build1-0ubuntu0.20.04.1
1:78.11.0+build1-0ubuntu0.20.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:78.13.0+build1-0ubuntu0.20.04.2"
        }
    ]
}