DEBIAN-CVE-2021-43537

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Source

https://security-tracker.debian.org/tracker/CVE-2021-43537

Import Source

https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json

JSON Data

https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-43537

Upstream

CVE-2021-43537

Published

2021-12-08T22:15:09.620Z

Modified

2025-11-14T04:04:28.493289Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

References

https://security-tracker.debian.org/tracker/CVE-2021-43537

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

Debian:14

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"

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"
}

Database specific

source

"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43537.json"