PyPI/cryptography CVE-2016-9243: unknown, EPSS 3.46%
HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.
Action: Upgrade cryptography to 1.5.3 or later.
pip install cryptography==1.5.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.5.3 | - |
Fixed versions
| 1.5.3 |
Sources
- osv: PYSEC-2017-8
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQ5G7KHKZC4SI23JE7277KZXM57GEQKT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U23KDR2M2N7W2ZSREG63BVW7D4VC6CIZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5R2ZOBMPWDFFHUZ6QOZZY36A6H5CGJXL/
- https://github.com/pyca/cryptography/issues/3211
- https://github.com/pyca/cryptography/commit/b924696b2e8731f39696584d12cceeb3aeb2d874
- https://cryptography.io/en/latest/changelog
- http://www.ubuntu.com/usn/USN-3138-1
- http://www.securityfocus.com/bid/94216
- http://www.openwall.com/lists/oss-security/2016/11/09/2
- https://github.com/advisories/GHSA-q3cj-2r34-2cwc
CVE-2016-9243 · published · modified · JSON