Mozilla Firefox/Thunderbird 14 Text Runs memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox and Thunderbird 14 and classified as critical. This affects an unknown part of the component Text Runs. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2012-3962. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mozilla Firefox and Thunderbird 14 (Web Browser) and classified as critical. This vulnerability affects an unknown code of the component Text Runs. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 do not properly iterate through the characters in a text run, which allows remote attackers to execute arbitrary code via a crafted document.

The weakness was disclosed 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 has been coordinated in cooperation with the vendor. This vulnerability was named CVE-2012-3962 since 07/11/2012. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a private exploit is available.

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 55342†), OSVDB (84989†), Secunia (SA50088†) and SecurityTracker (ID 1027452†). Additional details are provided at lists.opensuse.org. The entries VDB-6036, VDB-6035, VDB-6039 and VDB-6040 are pretty similar. 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: 9.0
VulDB Meta Temp Score: 8.1

VulDB Base Score: 9.0
VulDB Temp Score: 8.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 892553
OpenVAS Name: Debian Security Advisory DSA 2553-1 (iceweasel - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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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 🔍
09/01/2012 +2 days 🔍
09/02/2012 +1 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-2012-3962 (🔍)
GCVE (CVE): GCVE-0-2012-3962
GCVE (VulDB): GCVE-100-6052

OVAL: 🔍

SecurityFocus: 55342 - Mozilla Firefox/Thunderbird/SeaMonkey CVE-2012-3962 Memory Corruption Vulnerability
Secunia: 50088 - Mozilla Firefox Multiple Vulnerabilities, Highly Critical
OSVDB: 84989
SecurityTracker: 1027452 - Mozilla Thunderbird Multiple Bugs Let Remote Users Execute Arbitrary Code
Vulnerability Center: 36022 - Mozilla Firefox, Thunderbird, and SeaMonkey Remote Code Execution Vulnerability (CVE-2012-3962), Critical

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

Entryinfo

Created: 09/01/2012 20:59
Updated: 10/22/2024 00:53
Changes: 09/01/2012 20:59 (84), 01/31/2018 09:54 (11), 03/27/2021 15:53 (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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