CVE-2009-4629

Mozilla Necko, as used in Thunderbird 3.0.1, SeaMonkey, and other applications, performs DNS prefetching even when the app type is APP_TYPE_MAIL or APP_TYPE_EDITOR, which makes it easier for remote attackers to determine the network location of the application’s user by logging DNS requests, as demonstrated by DNS requests triggered by reading text/plain e-mail messages in Thunderbird.

Date published : 2010-01-29

https://bugzilla.mozilla.org/show_bug.cgi?id=492196

https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail