Mozilla Firefox up to Javascript Engine nsDOMClassInfo.cpp resource management

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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to (Web Browser). This issue affects an unknown part of the file nsDOMClassInfo.cpp of the component Javascript Engine. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The JavaScript engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) nsDOMClassInfo.cpp, (2) JS_HashTableRawLookup, and (3) MirrorWrappedNativeParent and js_LockGCThingRT.

The weakness was published 07/22/2009 by Peter Van der Beken (moz_bug_r_a4) with Martijn Wargers as Bug 493281 as not defined bug report (Bugzilla). It is possible to read the advisory at The identification of this vulnerability is CVE-2009-2466 since 07/15/2009. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 43769 (CentOS 5 : firefox (CESA-2009:1162)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116528 (Mozilla Firefox/Thunderbird Multiple Remote Vulnerabilities (MFSA 2009-34, MFSA 2009-35, MFSA 2009-36, MFSA 2009-37, MFSA 2009-39, MFSA 2009-40)).

Upgrading to version eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8756.

The vulnerability is also documented in the databases at X-Force (51899) and Tenable (43769).







CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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Class: Resource management
CWE: CWE-399 / CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Nessus ID: 43769
Nessus Name: CentOS 5 : firefox (CESA-2009:1162)
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Nessus Risk: 🔍
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OpenVAS ID: 64479
OpenVAS Name: Debian Security Advisory DSA 1840-1 (xulrunner)
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Firefox
TippingPoint: 🔍


07/15/2009 🔍
07/21/2009 +6 days 🔍
07/21/2009 +0 days 🔍
07/22/2009 +1 days 🔍
07/22/2009 +0 days 🔍
07/22/2009 +0 days 🔍
07/22/2009 +0 days 🔍
03/18/2015 +2065 days 🔍
08/12/2021 +2339 days 🔍



Advisory: Bug 493281
Researcher: Peter Van der Beken (moz_bug_r_a4)
Organization: Martijn Wargers
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2466 (🔍)

X-Force: 51899
Vulnerability Center: 22950 - Mozilla Firefox 3.0-3.0.11 and Tunderbird 2.0.4-2.0.19 JavaScript Engine Crashes Vulnerability, Medium
SecurityFocus: 35758 - RETIRED: Mozilla Firefox MFSA 2009-34, -35, -36, -37, -39, -40 Multiple Vulnerabilities
Secunia: 35914 - Mozilla Firefox Multiple Vulnerabilities, Highly Critical
Vupen: ADV-2009-1972


Created: 03/18/2015 03:15 PM
Updated: 08/12/2021 07:39 PM
Changes: 03/18/2015 03:15 PM (69), 02/12/2017 12:50 PM (16), 08/12/2021 07:39 PM (3)
Complete: 🔍
Cache ID: 3:063:40


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