Mozilla Firefox/Thunderbird 15 insPos memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox and Thunderbird 15. It has been rated as critical. Affected is an unknown function. This manipulation of the argument insPos causes memory corruption. This vulnerability appears as CVE-2012-4187. There is no available exploit. It is best practice to apply the suggested workaround.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox and Thunderbird 15 (Web Browser). Affected by this vulnerability is an unknown function. The manipulation of the argument insPos 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. The summary by CVE is:

Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 do not properly manage a certain insPos variable, which allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and assertion failure) via unspecified vectors.

The weakness was presented 10/09/2012 by Atte Kettunen (moz_bug_r_a4) with Oulu University Secure Programming Group as MFSA 2012-86 as confirmed advisory (Website). It is possible to read the advisory at mozilla.org. The public release was coordinated in cooperation with Mozilla. This vulnerability is known as CVE-2012-4187 since 08/08/2012. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 62484 (CentOS 5 / 6 : firefox (CESA-2012:1350)), 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 121529 (Solaris Multiple Vulnerabilities in Firefox).

Upgrading to version 16 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (79164), Tenable (62484), SecurityFocus (BID 56125†), OSVDB (86101†) and Secunia (SA50936†). See VDB-6636, VDB-6637, VDB-6638 and VDB-6639 for similar entries. 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: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 62484
Nessus Name: CentOS 5 / 6 : firefox (CESA-2012:1350)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 72477
OpenVAS Name: FreeBSD Ports: firefox
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Workaround
Status: 🔍

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

Upgrade: Firefox/Thunderbird 16

Timelineinfo

08/08/2012 🔍
10/09/2012 +62 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/10/2012 +1 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
10/11/2012 +1 days 🔍
10/12/2012 +1 days 🔍
12/30/2024 +4462 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2012-86
Researcher: Atte Kettunen (moz_bug_r_a4)
Organization: Oulu University Secure Programming Group
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-4187 (🔍)
GCVE (CVE): GCVE-0-2012-4187
GCVE (VulDB): GCVE-100-6643

OVAL: 🔍

X-Force: 79164 - Mozilla Firefox, Thunderbird, and SeaMonkey insPos code execution, High Risk
SecurityFocus: 56125 - Mozilla Firefox/Thunderbird/SeaMonkey CVE-2012-4187 Heap Memory Corruption Vulnerability
Secunia: 50936 - Mozilla Firefox / Thunderbird Multiple Vulnerabilities, Highly Critical
OSVDB: 86101
SecurityTracker: 1027631 - Mozilla Firefox Multiple Bugs Let Remote Users Execute Arbitrary Code, Spoof Information, and Inject Scripting Code
Vulnerability Center: 36479 - Mozilla Firefox, Thunderbird and SeaMonkey Remote Code Execution Related to insPos Variable, Critical

See also: 🔍

Entryinfo

Created: 10/12/2012 11:10
Updated: 12/30/2024 04:43
Changes: 10/12/2012 11:10 (88), 04/18/2017 09:04 (6), 04/18/2021 07:39 (2), 10/22/2024 03:28 (17), 12/30/2024 04:43 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

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