National Cyber Awareness System

Vulnerability Summary for CVE-2009-4629

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

Vendor Statements (disclaimer)

Official Statement from Red Hat (02/01/2010)

Not vulnerable. This issue did not affect the versions of Thunderbird as shipped with Red Hat Enterprise Linux 4 and 5, and Seamonkey as shipped with Red Hat Enterprise Linux 3 and 4.

References to Advisories, Solutions, and Tools

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External Source: MISC

Name: https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail

Hyperlink:https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail

External Source: CONFIRM

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

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