The function DCTStream::readScan 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.
[ { "events": [ { "introduced": "0" }, { "last_affected": "4.00" } ] } ]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18457.json"