Konqueror in KDE 3.0.3 allows remote attackers to cause a denial of service (core dump) via a web page that begins with a "xFFxFE" byte sequence and a large number of CRLF sequences, as demonstrated using freeze.htm.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11971
https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-1468