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CVE-2009-4629

Date: October 3, 2022

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.

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2009-4629
https://secure.grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_and_Webmail
https://bugzilla.mozilla.org/show_bug.cgi?id=492196
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-4629
https://www.mend.io/vulnerability-database/CVE-2009-4629

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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