Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Seamonkey | All versions |
| Mozilla | Thunderbird | 3.0.1 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=492196
- https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail
- https://bugzilla.mozilla.org/show_bug.cgi?id=492196
- https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail
FAQ
What is CVE-2009-4629?
CVE-2009-4629 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 at...
How severe is CVE-2009-4629?
CVE-2009-4629 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-4629?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Seamonkey, Mozilla Thunderbird.