The remote host is missing an update to qt4-x11 announced via advisory USN-857-1.

The problem can be corrected by upgrading your system to the following package versions: Ubuntu 8.10: libqt4-webkit 4.4.3-0ubuntu1.4 Ubuntu 9.04: libqt4-webkit 4.5.0-0ubuntu4.3 After a standard system upgrade you need to restart your session to effect the necessary changes. https://secure1.securityspace.com/smysecure/catid.html?in=USN-857-1

It was discovered that QtWebKit did not properly handle certain SVGPathList data structures. If a user were tricked into viewing a malicious website, an attacker could exploit this to execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-0945) Several flaws were discovered in the QtWebKit browser and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-1687, CVE-2009-1690, CVE-2009-1698, CVE-2009-1711, CVE-2009-1725) It was discovered that QtWebKit did not properly handle certain XSL stylesheets. If a user were tricked into viewing a malicious website, an attacker could exploit this to read arbitrary local files, and possibly files from different security zones. (CVE-2009-1699, CVE-2009-1713) It was discovered that QtWebKit did not prevent the loading of local Java applets. If a user were tricked into viewing a malicious website, an attacker could exploit this to execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-1712)