critical9.1
CVE-2020-36242
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 over…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cryptography.Io | Cryptography | before 3.3.2 |
| Fedoraproject | Fedora | Version 33 |
| Oracle | Communications Cloud Native Core Network Function Cloud Native Environment | Version 1.10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst
- https://github.com/pyca/cryptography/compare/3.3.1...3.3.2
- 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://www.oracle.com/security-alerts/cpujul2022.html
- https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst
- https://github.com/pyca/cryptography/compare/3.3.1...3.3.2
- 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://www.oracle.com/security-alerts/cpujul2022.html