Mozilla Firefox up to 16.0.2 PrepareEditor resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 16.0.2 and classified as critical. This affects the function nsTextEditorState::PrepareEditor. Such manipulation leads to resource management. This vulnerability is traded as CVE-2012-5840. The attack may be launched remotely. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 16.0.2 (Web Browser). Affected by this issue is the function nsTextEditorState::PrepareEditor. 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. CVE summarizes:

Use-after-free vulnerability in the nsTextEditorState::PrepareEditor function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors, a different vulnerability than CVE-2012-4214.

The weakness was shared 11/20/2012 by Abhishek Arya (Inferno) with Google Chrome Security as MFSA 2012-105 as confirmed advisory (Mozilla Blog). The advisory is shared for download at mozilla.org. The vendor cooperated in the coordination of the public release. This vulnerability is handled as CVE-2012-5840 since 11/05/2012. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a private exploit are known.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 63005 (CentOS 5 / 6 : firefox (CESA-2012:1482)), 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 120702 (Red Hat Update for Xulrunner Firefox (RHSA-2012:1482)).

Upgrading to version 17.0 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 X-Force (80190), Tenable (63005), SecurityFocus (BID 56635†), OSVDB (87606†) and Secunia (SA51358†). The entries VDB-6971, VDB-6972, VDB-6973 and VDB-6974 are related to this item. 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: 8.3
VulDB Meta Temp Score: 7.5

VulDB Base Score: 8.3
VulDB Temp Score: 7.5
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: 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: 63005
Nessus Name: CentOS 5 / 6 : firefox (CESA-2012:1482)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 72599
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 17.0

Timelineinfo

11/05/2012 🔍
11/20/2012 +15 days 🔍
11/20/2012 +0 days 🔍
11/20/2012 +0 days 🔍
11/20/2012 +0 days 🔍
11/21/2012 +1 days 🔍
11/21/2012 +0 days 🔍
11/21/2012 +0 days 🔍
11/25/2012 +4 days 🔍
11/26/2012 +1 days 🔍
04/19/2021 +3066 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2012-105
Researcher: Abhishek Arya (Inferno)
Organization: Google Chrome Security
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-5840 (🔍)
GCVE (CVE): GCVE-0-2012-5840
GCVE (VulDB): GCVE-100-7004

OVAL: 🔍

X-Force: 80190 - Mozilla Firefox, Thunderbird, and SeaMonkey nsTextEditorState::PrepareEditor() code execution, High Risk
SecurityFocus: 56635 - Mozilla Firefox/Thunderbird/SeaMonkey CVE-2012-5840 Use After Free Memory Corruption Vulnerability
Secunia: 51358 - Mozilla Firefox / Thunderbird Multiple Vulnerabilities, Highly Critical
OSVDB: 87606
SecurityTracker: 1027791 - Mozilla Firefox Multiple Bugs Let Remote Users Execute Arbitrary Code and Conduct Cross-Site Scripting Attacks
Vulnerability Center: 37374 - Mozilla Firefox, Thunderbird and SeaMonkey Arbitrary Code Execution Vulnerability - CVE-2012-5840, Critical

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

Entryinfo

Created: 11/26/2012 13:32
Updated: 04/19/2021 14:41
Changes: 11/26/2012 13:32 (92), 01/31/2018 09:54 (4), 04/19/2021 14:41 (3)
Complete: 🔍
Committer:
Cache ID: 216:9BE:103

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