Mozilla Firefox/Thunderbird 14 SetCurrentDictionary resource management

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox and Thunderbird 14. This affects the function mozSpellChecker::SetCurrentDictionary. The manipulation results in resource management. This vulnerability is identified as CVE-2012-3960. The attack can be executed remotely. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox and Thunderbird 14 (Web Browser). It has been classified as very critical. Affected is the function mozSpellChecker::SetCurrentDictionary. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Use-after-free vulnerability in the mozSpellChecker::SetCurrentDictionary function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

The weakness was released 08/28/2012 by Abhishek Arya (Inferno) with Google Chrome Security Team as MFSA2012-58 as confirmed advisory (Website). The advisory is shared for download at mozilla.org. The public release was coordinated with the vendor. This vulnerability is traded as CVE-2012-3960 since 07/11/2012. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a private exploit are known. The current price for an exploit might be approx. USD (estimation calculated on 10/22/2024).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 61721 (CentOS 5 / 6 : firefox (CESA-2012:1210)), 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 120453 (Red Hat Update for Xulrunner Firefox (RHSA-2012:1210)).

Upgrading to version 15 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (61721), SecurityFocus (BID 55325†), OSVDB (84960†), Secunia (SA50088†) and SecurityTracker (ID 1027452†). Entries connected to this vulnerability are available at VDB-6035, VDB-6039, VDB-6040 and VDB-6041. Once again VulDB remains the best source 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: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 61721
Nessus Name: CentOS 5 / 6 : firefox (CESA-2012:1210)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71829
OpenVAS Name: FreeBSD Ports: firefox
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox/Thunderbird 15

Timelineinfo

07/11/2012 🔍
08/28/2012 +48 days 🔍
08/28/2012 +0 days 🔍
08/28/2012 +0 days 🔍
08/28/2012 +0 days 🔍
08/29/2012 +1 days 🔍
08/29/2012 +0 days 🔍
08/29/2012 +0 days 🔍
08/30/2012 +1 days 🔍
08/31/2012 +1 days 🔍
09/02/2012 +2 days 🔍
10/22/2024 +4432 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA2012-58
Researcher: Abhishek Arya (Inferno)
Organization: Google Chrome Security Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-3960 (🔍)
GCVE (CVE): GCVE-0-2012-3960
GCVE (VulDB): GCVE-100-6036

OVAL: 🔍

SecurityFocus: 55325 - Mozilla Firefox/Thunderbird/SeaMonkey CVE-2012-3960 Use-After-Free Memory Corruption Vulnerability
Secunia: 50088 - Mozilla Firefox Multiple Vulnerabilities, Highly Critical
OSVDB: 84960
SecurityTracker: 1027452 - Mozilla Thunderbird Multiple Bugs Let Remote Users Execute Arbitrary Code
Vulnerability Center: 36025 - Mozilla Firefox, Thunderbird, and SeaMonkey Remote Code Execution or DoS Vulnerability, Critical

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

Entryinfo

Created: 08/31/2012 10:46
Updated: 10/22/2024 00:53
Changes: 08/31/2012 10:46 (82), 01/31/2018 09:53 (11), 03/27/2021 14:58 (3), 10/22/2024 00:53 (15)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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