{"id":"ALPINE-CVE-2020-36242","details":"In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.","modified":"2026-09-11T10:17:51.442159220Z","published":"2021-02-07T20:15:12.090Z","upstream":["CVE-2020-36242"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-36242"}],"affected":[{"package":{"name":"py3-cryptography","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/py3-cryptography?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-36242.json"}},{"package":{"name":"py3-cryptography","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/py3-cryptography?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-36242.json"}},{"package":{"name":"py3-cryptography","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/py3-cryptography?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-36242.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:H"}]}