CESA-2007:0883: qt security update

Description

Updated qt packages that correct two security flaws are now available. This update has been rated as having important security impact by the Red Hat Security Response Team.

Qt is a software toolkit that simplifies the task of writing and maintaining GUI (Graphical User Interface) applications for the X Window System. A flaw was found in the way Qt expanded certain UTF8 characters. It was possible to prevent a Qt-based application from properly sanitizing user supplied input. This could, for example, result in a cross-site scripting attack against the Konqueror web browser. (CVE-2007-0242) A buffer overflow flaw was found in the way Qt expanded malformed Unicode strings. If an application linked against Qt parsed a malicious Unicode string, it could lead to a denial of service or possibly allow the execution of arbitrary code. (CVE-2007-4137) Users of Qt should upgrade to these updated packages, which contain a backported patch to correct these issues.