The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://bugzilla.mozilla.org/show_bug.cgi?id=257314 http://www.vuxml.org/freebsd/da690355-1159-11d9-bc4a-000c41e2cdad.html

The following packages are affected: thunderbird mozilla mozilla-gtk1 linux-mozilla CVE-2004-0903 Stack-based buffer overflow in the writeGroup function in nsVCardObj.cpp for Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Thunderbird before 0.8 allows remote attackers to execute arbitrary code via malformed VCard attachments that are not properly handled when previewing a message.