PYSEC-2018-52
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/cryptography/PYSEC-2018-52.yaml
- JSON Data
- https://api.test.osv.dev/v1/vulns/PYSEC-2018-52
- Aliases
- Published
- 2018-07-30T16:29:00Z
- Modified
- 2023-11-01T04:48:45.841461Z
- Summary
- [none]
- Details
-
A flaw was found in python-cryptography versions between >=1.9.0 and <2.3. The finalizewithtag API did not enforce a minimum tag length. If a user did not validate the input length prior to passing it to finalizewithtag an attacker could craft an invalid payload with a shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance of passing the MAC check. GCM tag forgeries can cause key leakage.
- References
Affected packages
PyPI / cryptography
Package
- Name
- cryptography
- View open source insights on deps.dev
- Purl
- pkg:pypi/cryptography