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.
Published: 2010-01-29
Score: 5.0 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2009-4594 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.
History

Wed, 28 May 2025 14:45:00 +0000

Type Values Removed Values Added
References

Thu, 22 May 2025 04:30:00 +0000


Subscriptions

Mozilla Seamonkey Thunderbird
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-09-17T02:58:07.207Z

Reserved: 2010-01-29T00:00:00.000Z

Link: CVE-2009-4629

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2010-01-29T18:30:00.840

Modified: 2026-04-29T01:13:23.040

Link: CVE-2009-4629

cve-icon Redhat

Severity : Moderate

Publid Date: 2009-05-09T00:00:00Z

Links: CVE-2009-4629 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses