Mozilla Firefox 3.5.1/3.5.2/3.5.3 Javascript Engine memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Mozilla Firefox 3.5.1/3.5.2/3.5.3 (Web Browser) and classified as very critical. Affected by this issue is an unknown part of the component Javascript Engine. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Multiple unspecified vulnerabilities in the JavaScript engine in Mozilla Firefox 3.5.x before 3.5.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

The weakness was presented 10/29/2009 by David Anderson as Bug 518675 as not defined bug report (Bugzilla). The advisory is shared for download at This vulnerability is handled as CVE-2009-3383. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/24/2021).

The vulnerability scanner Nessus provides a plugin with the ID 42295 (CentOS 4 : firefox (CESA-2009:1530)), 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 116565 (Mozilla Firefox and SeaMonkey Multiple Vulnerabilities (MFSA 2009-52 through MFSA 2009-64)).

Upgrading to version 3.5.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (42295). See 4052, 50808, 50647 and 50646 for similar entries.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍


Nessus ID: 42295
Nessus Name: CentOS 4 : firefox (CESA-2009:1530)
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OpenVAS ID: 66159
OpenVAS Name: FreeBSD Ports: firefox
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

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Upgrade: Firefox 3.5.1


09/24/2009 🔍
10/27/2009 +33 days 🔍
10/29/2009 +2 days 🔍
10/29/2009 +0 days 🔍
10/29/2009 +0 days 🔍
11/02/2009 +4 days 🔍
03/18/2015 +1962 days 🔍
08/24/2021 +2351 days 🔍



Advisory: Bug 518675
Researcher: David Anderson
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-3383 (🔍)

Vulnerability Center: 23901 - Mozilla Firefox Prior to 3.5.4 JavaScript engine Remote Code Execution or DoS Vulnerability, High
SecurityFocus: 36869 - Mozilla Firefox CVE-2009-3383 Multiple Remote Memory Corruption Vulnerabilities

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Created: 03/18/2015 03:15 PM
Updated: 08/24/2021 08:58 PM
Changes: 03/18/2015 03:15 PM (64), 02/16/2017 10:06 AM (9), 08/24/2021 08:50 PM (3), 08/24/2021 08:58 PM (1)
Complete: 🔍


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