Mozilla Firefox numeric error

CVSS Meta Temp Score
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CTI Interest Score
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10.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox. It has been rated as critical. Affected by this vulnerability is an unknown functionality. The manipulation leads to numeric error. This vulnerability is uniquely identified as CVE-2011-2371. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Mozilla Firefox (Web Browser) (version unknown). This issue affects an unknown function. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to execute arbitrary code via vectors involving a long JavaScript Array object.

The weakness was disclosed 06/30/2011 by Martin Barbella (Nils) as Bug 664009 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2011-2371. 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 are unknown but a public exploit is available. The pricing for an exploit might be around USD at the moment (estimation calculated on 06/08/2025).

A public exploit has been developed by ryujin and been published 4 months after the advisory. The exploit is available at exploit-db.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 55404 (CentOS 4 / 5 : firefox (CESA-2011:0885)), 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 119343 (Red Hat Update for Xulrunner Firefox (RHSA-2011:0885)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11639.

The vulnerability is also documented in the databases at Exploit-DB (17974), Tenable (55404), SecurityFocus (BID 48354†) and Vulnerability Center (SBV-31965†). The entries VDB-57833, VDB-57832, VDB-57831 and VDB-57830 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: ryujin
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55404
Nessus Name: CentOS 4 / 5 : firefox (CESA-2011:0885)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 69975
OpenVAS Name: Debian Security Advisory DSA 2268-1 (iceweasel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: mozilla_reduceright.rb
MetaSploit Name: Mozilla Firefox Array.reduceRight() Integer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

06/03/2011 🔍
06/21/2011 +18 days 🔍
06/21/2011 +0 days 🔍
06/22/2011 +1 days 🔍
06/30/2011 +8 days 🔍
06/30/2011 +0 days 🔍
10/12/2011 +104 days 🔍
10/12/2011 +0 days 🔍
03/23/2015 +1258 days 🔍
06/08/2025 +3730 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 664009
Researcher: Martin Barbella (Nils)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-2371 (🔍)
GCVE (CVE): GCVE-0-2011-2371
GCVE (VulDB): GCVE-100-57827

OVAL: 🔍

SecurityFocus: 48354 - RETIRED: Mozilla Firefox/Thunderbird/SeaMonkey MFSA 2011-19 through -28 Multiple Vulnerabilities
Secunia: 45002
Vulnerability Center: 31965 - Mozilla Firefox, Thunderbird and SeaMonkey \x27Array.reduceRight()\x27 Integer Overflow Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 06/08/2025 11:04
Changes: 03/23/2015 16:50 (68), 03/24/2017 12:15 (19), 11/13/2021 17:58 (4), 11/13/2021 18:04 (1), 06/08/2025 11:04 (15)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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