The remote host is missing an update to xulrunner announced via advisory DSA 1484-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201484-1

Several remote vulnerabilities have been discovered in Xulrunner, a runtime environment for XUL applications. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2008-0412 Jesse Ruderman, Kai Engert, Martijn Wargers, Mats Palmgren and Paul Nickerson discovered crashes in the layout engine, which might allow the execution of arbitrary code. CVE-2008-0413 Carsten Book, Wesley Garland, Igor Bukanov, moz_bug_r_a4, shutdown, Philip Taylor and tgirmann discovered crashes in the Javascript engine, which might allow the execution of arbitrary code. CVE-2008-0414 hong and Gregory Fleisher discovered that file input focus vulnerabilities in the file upload control could allow information disclosure of local files. CVE-2008-0415 moz_bug_r_a4 and Boris Zbarsky discovered discovered several vulnerabilities in Javascript handling, which could allow privilege escalation. CVE-2008-0417 Justin Dolske discovered that the password storage machanism could be abused by malicious web sites to corrupt existing saved passwords. CVE-2008-0418 Gerry Eisenhaur and moz_bug_r_a4 discovered that a directory traversal vulnerability in chrome: URI handling could lead to information disclosure. CVE-2008-0419 David Bloom discovered a race condition in the image handling of designMode elements, which could lead to information disclosure or potentially the execution of arbitrary code. CVE-2008-0591 Michal Zalewski discovered that timers protecting security-sensitive dialogs (which disable dialog elements until a timeout is reached) could be bypassed by window focus changes through Javascript. CVE-2008-0592 It was discovered that malformed content declarations of saved attachments could prevent a user in the opening local files with a .txt file name, resulting in minor denial of service. CVE-2008-0593 Martin Straka discovered that insecure stylesheet handling during redirects could lead to information disclosure. CVE-2008-0594 Emil Ljungdahl and Lars-Olof Moilanen discovered that phishing protections could be bypassed with <div> elements. For the stable distribution (etch), these problems have been fixed in version 1.8.0.15~pre080131b-0etch1. The old stable distribution (sarge) doesn't contain xulrunner. We recommend that you upgrade your xulrunner packages.