CVE-2016-9243
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2016-9243
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9243.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2016-9243
- Aliases
- Downstream
- Related
- Published
- 2017-03-27T17:59:00Z
- Modified
- 2025-10-21T04:01:48.613620Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.
- References
-
- http://www.openwall.com/lists/oss-security/2016/11/09/2
- http://www.securityfocus.com/bid/94216
- http://www.ubuntu.com/usn/USN-3138-1
- https://cryptography.io/en/latest/changelog
- https://github.com/pyca/cryptography/commit/b924696b2e8731f39696584d12cceeb3aeb2d874
- https://github.com/pyca/cryptography/issues/3211
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R2ZOBMPWDFFHUZ6QOZZY36A6H5CGJXL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U23KDR2M2N7W2ZSREG63BVW7D4VC6CIZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQ5G7KHKZC4SI23JE7277KZXM57GEQKT/