The SSL capability for Konqueror in KDE 3.0.2 and earlier does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack.
https://exchange.xforce.ibmcloud.com/vulnerabilities/9776
http://www.redhat.com/support/errata/RHSA-2002-221.html
http://www.redhat.com/support/errata/RHSA-2002-220.html
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2002:058
http://www.kde.org/info/security/advisory-20020818-1.txt
http://www.debian.org/security/2002/dsa-155
http://marc.info/?l=bugtraq&m=102918241005893&w=2
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000519
http://archives.neohapsis.com/archives/bugtraq/2002-08/0170.html