CVE-2021-43541

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-43541
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43541.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-43541
Downstream
Related
Published
2021-12-08T22:15:09Z
Modified
2025-07-01T13:06:26.428727Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

References

Affected packages

Debian:11 / firefox-esr

Package

Name
firefox-esr
Purl
pkg:deb/debian/firefox-esr?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
91.4.1esr-1~deb11u1

Affected versions

78.*

78.12.0esr-1
78.13.0esr-1~deb9u1
78.13.0esr-1~deb10u1
78.13.0esr-1~deb11u1
78.13.0esr-1
78.14.0esr-1~deb9u1
78.14.0esr-1~deb10u1
78.14.0esr-1~deb11u1
78.14.0esr-1
78.15.0esr-1~deb9u1
78.15.0esr-1~deb10u1
78.15.0esr-1~deb11u1

91.*

91.0esr-1
91.0.1esr-1
91.1.0esr-1
91.2.0esr-1
91.3.0esr-1
91.3.0esr-2
91.4.0esr-1
91.4.1esr-1~deb9u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / firefox-esr

Package

Name
firefox-esr
Purl
pkg:deb/debian/firefox-esr?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
91.4.0esr-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / firefox-esr

Package

Name
firefox-esr
Purl
pkg:deb/debian/firefox-esr?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
91.4.0esr-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/debian/thunderbird?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:91.4.1-1~deb11u1

Affected versions

1:78.*

1:78.12.0-1
1:78.13.0-1~deb9u1
1:78.13.0-1~deb10u1
1:78.13.0-1~deb11u1
1:78.13.0-1
1:78.14.0-1~deb9u1
1:78.14.0-1~deb10u1
1:78.14.0-1~deb11u1
1:78.14.0-1

1:84.*

1:84.0~b3-1

1:85.*

1:85.0~b3-1

1:86.*

1:86.0~b3-1

1:88.*

1:88.0~b2-1

1:89.*

1:89.0~b2-1

1:90.*

1:90.0~b2-1

1:91.*

1:91.0~b1-1
1:91.0~b3-1
1:91.0~b5-1
1:91.0-1
1:91.0.2-1
1:91.1.0-1
1:91.1.1-1
1:91.2.0-1
1:91.2.1-1
1:91.3.0-1
1:91.3.2-1
1:91.4.0-1
1:91.4.1-1~deb9u1
1:91.4.1-1~deb10u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/debian/thunderbird?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:91.4.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / thunderbird

Package

Name
thunderbird
Purl
pkg:deb/debian/thunderbird?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:91.4.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}