{"id":"CVE-2018-18459","details":"The function DCTStream::getBlock in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.","modified":"2026-03-14T09:28:33.319352Z","published":"2018-10-18T06:29:00.917Z","references":[{"type":"ADVISORY","url":"https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217"},{"type":"ADVISORY","url":"https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.00"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18459.json"}}],"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"}]}