{"id":"CVE-2017-18186","details":"An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.","modified":"2026-04-11T04:38:16.972186Z","published":"2018-02-13T19:29:00.463Z","references":[{"type":"WEB","url":"https://usn.ubuntu.com/3638-1/"},{"type":"ADVISORY","url":"https://github.com/qpdf/qpdf/commit/85f05cc57ffa0a863d9d9b23e73acea9410b2937"},{"type":"ADVISORY","url":"https://github.com/qpdf/qpdf/issues/149"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qpdf/qpdf","events":[{"introduced":"0"},{"fixed":"0f1ce8e6461d417d1fed2ea4a0cbf27f10ee4eff"},{"fixed":"85f05cc57ffa0a863d9d9b23e73acea9410b2937"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"7.0.0"}]}}],"versions":["release-qpdf-2.0","release-qpdf-2.0.1","release-qpdf-2.0.2","release-qpdf-2.0.3","release-qpdf-2.0.4","release-qpdf-2.0.5","release-qpdf-2.0.6","release-qpdf-2.1","release-qpdf-2.1.1","release-qpdf-2.1.2","release-qpdf-2.1.3","release-qpdf-2.1.4","release-qpdf-2.1.5","release-qpdf-2.1.rc1","release-qpdf-2.2.0","release-qpdf-2.2.1","release-qpdf-2.2.2","release-qpdf-2.2.3","release-qpdf-2.2.4","release-qpdf-2.2.rc1","release-qpdf-2.3.0","release-qpdf-2.3.1","release-qpdf-3.0.0","release-qpdf-3.0.1","release-qpdf-3.0.2","release-qpdf-3.0.rc1","release-qpdf-4.0.0","release-qpdf-4.0.1","release-qpdf-4.1.0","release-qpdf-4.2.0","release-qpdf-5.0.0","release-qpdf-5.0.1","release-qpdf-5.1.0","release-qpdf-5.1.1","release-qpdf-5.1.2","release-qpdf-5.1.3","release-qpdf-5.2.0","release-qpdf-6.0.0","release-qpdf-7.0.b1"],"database_specific":{"vanir_signatures":[{"id":"CVE-2017-18186-bb259821","source":"https://github.com/qpdf/qpdf/commit/85f05cc57ffa0a863d9d9b23e73acea9410b2937","deprecated":false,"signature_type":"Function","digest":{"length":1526,"function_hash":"143470664312351326887922365433873313335"},"signature_version":"v1","target":{"file":"libqpdf/QPDF.cc","function":"QPDF::read_xref"}},{"id":"CVE-2017-18186-be9f9cba","source":"https://github.com/qpdf/qpdf/commit/85f05cc57ffa0a863d9d9b23e73acea9410b2937","deprecated":false,"signature_type":"Line","digest":{"line_hashes":["266438603850559179889971379008137572864","170858492933963275451002373626649560772","86906268882115607882227833084113952493","29964010784280242289628928258739117002","78468669523777775192181095830342106787","148108207355360572343990471531997700227","76475920812149409294602624238930904875","168508622536348576714227445013227533227","79954515655412324376867276884929413567","336149513343406209498739849406371991950"],"threshold":0.9},"signature_version":"v1","target":{"file":"libqpdf/QPDF.cc"}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18186.json","vanir_signatures_modified":"2026-04-11T04:38:16Z"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}