{"id":"GHSA-chg9-3c3p-ch23","summary":"Lemur uses static IV per key","details":"Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.","aliases":["CVE-2015-7764","PYSEC-2017-50"],"modified":"2026-09-10T03:49:22.227010371Z","published":"2022-05-13T01:30:21Z","database_specific":{"nvd_published_at":"2017-08-09T16:29:00Z","cwe_ids":["CWE-331"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2024-04-29T14:49:35Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2015-7764"},{"type":"WEB","url":"https://github.com/Netflix/lemur/issues/117"},{"type":"WEB","url":"https://github.com/kvesteri/sqlalchemy-utils/issues/166"},{"type":"WEB","url":"https://github.com/Netflix/lemur/commit/394e18f76e5eb534d95160945ebc231ec3b4c794"},{"type":"PACKAGE","url":"https://github.com/Netflix/lemur"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/lemur/PYSEC-2017-50.yaml"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2015/10/20/3"}],"affected":[{"package":{"name":"lemur","ecosystem":"PyPI","purl":"pkg:pypi/lemur"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-chg9-3c3p-ch23/GHSA-chg9-3c3p-ch23.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}