PYSEC-2021-63
At a glance
- Published
- Updated
- CVE
- CVE-2020-36242
- Aliases
- GHSA-rhm9-p9w5-fwm7
Description
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 packages
| Package | Versions |
|---|---|
| PyPI · cryptography | introduced 3.1, fixed 3.3.2 |
References
- https://github.com/pyca/cryptography/issues/5615 REPORT
- https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst WEB
- https://github.com/pyca/cryptography/compare/3.3.1...3.3.2 WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/ WEB
- https://github.com/advisories/GHSA-rhm9-p9w5-fwm7 ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |