DEBIAN-CVE-2020-36242

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Source
https://security-tracker.debian.org/tracker/CVE-2020-36242
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-36242.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2020-36242
Upstream
Published
2021-02-07T20:15:12Z
Modified
2025-09-25T22:40:21Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.

References

Affected packages

Debian:11 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / python-cryptography

Package

Name
python-cryptography
Purl
pkg:deb/debian/python-cryptography?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}