pyca/cryptography · Security
Improper input validation in cryptography
- GHSA ID
- GHSA-q3cj-2r34-2cwc
- CVE ID
- CVE-2016-9243
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS v3
- 7.5 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Description
HKDF in cryptography before 1.5.3 returns an empty byte-string if used with a length less than algorithm.digest_size.
CWEs
- CWE-20 · Improper Input Validation
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-9243 ↗
- https://github.com/pyca/cryptography/issues/3211 ↗
- https://github.com/pyca/cryptography/commit/b924696b2e8731f39696584d12cceeb3aeb2d874 ↗
- https://cryptography.io/en/latest/changelog ↗
- http://www.openwall.com/lists/oss-security/2016/11/09/2 ↗
- http://www.ubuntu.com/usn/USN-3138-1 ↗
- https://cryptography.io/en/latest/changelog/#v1-5-3 ↗
- https://github.com/advisories/GHSA-q3cj-2r34-2cwc ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/cryptography/PYSEC-2017-8.yaml ↗
- http://www.securityfocus.com/bid/94216 ↗
- 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 ↗
- https://lists.fedoraproject.org/archives/list/[email protected]/message/5R2ZOBMPWDFFHUZ6QOZZY36A6H5CGJXL ↗
- https://lists.fedoraproject.org/archives/list/[email protected]/message/U23KDR2M2N7W2ZSREG63BVW7D4VC6CIZ ↗
- https://lists.fedoraproject.org/archives/list/[email protected]/message/WQ5G7KHKZC4SI23JE7277KZXM57GEQKT ↗