UBUNTU-CVE-2023-50762

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Source
https://ubuntu.com/security/CVE-2023-50762
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-50762.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-50762
Upstream
Downstream
Related
Published
2023-12-20T00:00:00Z
Modified
2025-09-08T16:56:36Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to spoof an email message. This vulnerability affects Thunderbird < 115.6.

References

Affected packages

Ubuntu:20.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:115.6.0+build2-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:115.6.0+build2-0ubuntu0.20.04.1

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
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
1:78.13.0+build1-0ubuntu0.20.04.2
1:78.14.0+build1-0ubuntu0.20.04.1
1:78.14.0+build1-0ubuntu0.20.04.2

1:91.*

1:91.5.0+build1-0ubuntu0.20.04.1
1:91.7.0+build2-0ubuntu0.20.04.1
1:91.8.1+build1-0ubuntu0.20.04.1
1:91.9.1+build1-0ubuntu0.20.04.1
1:91.11.0+build2-0ubuntu0.20.04.1

1:102.*

1:102.2.2+build1-0ubuntu0.20.04.1
1:102.4.2+build2-0ubuntu0.20.04.1
1:102.7.1+build2-0ubuntu0.20.04.1
1:102.8.0+build2-0ubuntu0.20.04.1
1:102.9.0+build1-0ubuntu0.20.04.1
1:102.10.0+build2-0ubuntu0.20.04.1
1:102.11.0+build1-0ubuntu0.20.04.1
1:102.13.0+build1-0ubuntu0.20.04.1
1:102.15.0+build1-0ubuntu0.20.04.1
1:102.15.1+build1-0ubuntu0.20.04.1

1:115.*

1:115.3.1+build1-0ubuntu0.20.04.1
1:115.4.1+build1-0ubuntu0.20.04.1
1:115.5.0+build1-0ubuntu0.20.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:115.6.0+build2-0ubuntu0.20.04.1"
        }
    ]
}

Ubuntu:22.04:LTS / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:115.6.0+build2-0ubuntu0.22.04.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:115.6.0+build2-0ubuntu0.22.04.1

Affected versions

1:91.*

1:91.1.2+build1-0ubuntu1
1:91.3.0+build2-0ubuntu1
1:91.3.1+build1-0ubuntu1
1:91.3.2+build1-0ubuntu1
1:91.4.0+build1.1-0ubuntu1
1:91.4.0+build2-0ubuntu1
1:91.5.0+build1-0ubuntu1
1:91.5.1+build1-0ubuntu1
1:91.6.1+build1-0ubuntu1
1:91.7.0+build1-0ubuntu1
1:91.7.0+build2-0ubuntu1
1:91.8.0+build2-0ubuntu1
1:91.9.1+build1-0ubuntu0.22.04.1
1:91.11.0+build2-0ubuntu0.22.04.1

1:102.*

1:102.2.2+build1-0ubuntu0.22.04.1
1:102.4.2+build2-0ubuntu0.22.04.1
1:102.7.1+build2-0ubuntu0.22.04.1
1:102.8.0+build2-0ubuntu0.22.04.1
1:102.9.0+build1-0ubuntu0.22.04.1
1:102.10.0+build2-0ubuntu0.22.04.1
1:102.11.0+build1-0ubuntu0.22.04.1
1:102.13.0+build1-0ubuntu0.22.04.1
1:102.15.0+build1-0ubuntu0.22.04.1
1:102.15.1+build1-0ubuntu0.22.04.1

1:115.*

1:115.3.1+build1-0ubuntu0.22.04.2
1:115.4.1+build1-0ubuntu0.22.04.1
1:115.5.0+build1-0ubuntu0.22.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:115.6.0+build2-0ubuntu0.22.04.1"
        }
    ]
}