Using Qt QLabel class to display security critical information allows interface spoofing.
CVE:
CVE-2011-3367 (Arora, possibly 0.11 and other versions, does not use a certain font when rendering certificate fields in a security dialog, which allows remote attackers to spoof the common name (CN) of a certificate via rich text.)
CVE-2011-3366 (Rekonq 0.7.0 and earlier does not use a certain font when rendering certificate fields in a security dialog, which allows remote attackers to spoof the common name (CN) of a certificate via rich text.)
CVE-2011-3365 (The KDE SSL Wrapper (KSSL) API in KDE SC 4.6.0 through 4.7.1, and possibly earlier versions, does not use a certain font when rendering certificate fields in a security dialog, which allows remote attackers to spoof the common name (CN) of a certificate via rich text.)