CVE-2020-36242
CVE-2020-36242
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.1 · Critical · EPSS 6.7% · Fix available
- Published
- Updated
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
python-cryptography Debian:12
- Affected ranges
- ECOSYSTEM: < 3.3.2-1
Update to 3.3.2-1
python-cryptography Debian:13
- Affected ranges
- ECOSYSTEM: < 3.3.2-1
Update to 3.3.2-1
python-cryptography Debian:14
- Affected ranges
- ECOSYSTEM: < 3.3.2-1
Update to 3.3.2-1
cryptography PyPI
- Versions
- 3.1
- 3.1.1
- 3.2
- 3.2.1
- 3.3
- 3.3.1
- Affected ranges
- ECOSYSTEM: ≥ 3.1, < 3.3.2
Update to 3.3.2
Original sources
- https://github.com/pyca/cryptography/issues/5615
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://github.com/pyca/cryptography/compare/3.3.1...3.3.2
- https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-36242