Red Hat Bugzilla – Bug 560133
CVE-2009-4629 thunderbird/seamonkey: privacy compromise via DNS prefetching
Last modified: 2015-07-29 09:15:40 EDT
Common Vulnerabilities and Exposures assigned an identifier CVE-2009-4629 to the following vulnerability: Name: CVE-2009-4629 URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4629 Assigned: 20100129 Reference: MISC: https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail Reference: CONFIRM: https://bugzilla.mozilla.org/show_bug.cgi?id=492196 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. Note that this issue would not affect Thunderbird or Seamonkey as shipped with Red Hat Enterprise Linux 3, 4, or 5 as DNS prefetching was not implemented in the versions of Thunderbird or Seamonkey provided (no nsHTMLDNSPrefetch.cpp, for instance). DNS prefetching was implemented in xul-runner 1.9.1 as per https://bugzilla.mozilla.org/show_bug.cgi?id=453403).
Note that this issue would not affect Thunderbird or Seamonkey as shipped with Red Hat Enterprise Linux 3, 4, or 5 as DNS prefetching was not implemented in the versions of Thunderbird or Seamonkey provided (no nsHTMLDNSPrefetch.cpp, for instance). DNS prefetching was implemented in xulrunner 1.9.1 as per https://bugzilla.mozilla.org/show_bug.cgi?id=453403).