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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-36242US | critical9.1 | — | ||
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 overf… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/advisories/GHSA-rhm9-p9w5-fwm7ADVISORY
- https://github.com/pyca/cryptography/blob/master/CHANGELOG.rstWEB
- https://github.com/pyca/cryptography/compare/3.3.1...3.3.2WEB
- https://github.com/pyca/cryptography/issues/5615REPORT
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E/WEB
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