UBUNTU-CVE-2025-3877

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Source

https://ubuntu.com/security/CVE-2025-3877

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-3877.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-3877

Related

CVE-2025-3877

Published

2025-05-15T00:00:00Z

Modified

2025-05-15T16:38:04Z

Summary

[none]

Details

A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data (e.g. using /dev/urandom on Linux) or to leak Windows credentials via SMB links when the email is viewed in HTML mode. While user interaction is required to download the .pdf file, visual obfuscation can conceal the download trigger. Viewing the email in HTML mode is enough to load external content. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1.

References

Affected packages

Ubuntu:20.04:LTS / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@1:115.18.0+build1-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

1:115.6.0+build2-0ubuntu0.20.04.1

1:115.8.1+build1-0ubuntu0.20.04.1

1:115.9.0+build1-0ubuntu0.20.04.1

1:115.10.1+build1-0ubuntu0.20.04.1

1:115.11.0+build2-0ubuntu0.20.04.1

1:115.12.0+build3-0ubuntu0.20.04.1

1:115.13.0+build5-0ubuntu0.20.04.1

1:115.15.0+build1-0ubuntu0.20.04.1

1:115.16.0+build2-0ubuntu0.20.04.1

1:115.18.0+build1-0ubuntu0.20.04.1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@1:115.18.0+build1-0ubuntu0.22.04.1?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

1:115.6.0+build2-0ubuntu0.22.04.1

1:115.8.1+build1-0ubuntu0.22.04.1

1:115.9.0+build1-0ubuntu0.22.04.1

1:115.10.1+build1-0ubuntu0.22.04.1

1:115.11.0+build2-0ubuntu0.22.04.1

1:115.12.0+build3-0ubuntu0.22.04.1

1:115.13.0+build5-0ubuntu0.22.04.1

1:115.15.0+build1-0ubuntu0.22.04.1

1:115.16.0+build2-0ubuntu0.22.04.1

1:115.18.0+build1-0ubuntu0.22.04.1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@2:1snap1-0ubuntu3?arch=source&distro=oracular

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

Other

2:1snap1-0ubuntu3

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@2:1snap1-0ubuntu3?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:115.*

1:115.3.1+build1-0ubuntu1

1:115.4.1+build1-0ubuntu1

1:115.4.3+build1-0ubuntu1

1:115.5.0+build1-0ubuntu1

1:115.5.1+build1-0ubuntu1

1:115.5.2+build2-0ubuntu1

1:115.6.0+build1-0ubuntu1

1:115.6.0+build2-0ubuntu1

1:115.6.1+build1-0ubuntu1

1:115.8.0+build1-0ubuntu1

1:115.8.1+build1+snap2

1:115.8.1+build1+snap3

Other

2:1snap1-0ubuntu1

2:1snap1-0ubuntu3

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:25.04 / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@2:1snap1-0ubuntu3?arch=source&distro=plucky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

Other

2:1snap1-0ubuntu3

Ecosystem specific

{
    "ubuntu_priority": "medium"
}