Mozilla Firefox/Thunderbird 15 Javascript instanceof resource management ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mozilla Firefox and Thunderbird 15 and classified as problematic. The affected element is the function instanceof of the component Javascript Handler. Performing a manipulation results in resource management. This vulnerability is cataloged as CVE-2012-3989. It is possible to initiate the attack remotely. There is no exploit available. The presence of this vulnerability remains uncertain at this time. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mozilla Firefox and Thunderbird 15 (Web Browser). It has been classified as critical. This affects the function instanceof of the component Javascript Handler. 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. The summary by CVE is:

Mozilla Firefox before 16.0, Thunderbird before 16.0, and SeaMonkey before 2.13 do not properly perform a cast of an unspecified variable during use of the instanceof operator on a JavaScript object, which allows remote attackers to execute arbitrary code or cause a denial of service (assertion failure) via a crafted web site.

The weakness was shared 10/09/2012 by Christian Holler (Ms2ger) as MFSA 2012-80 as confirmed advisory (Website). It is possible to read the advisory at mozilla.org. The vendor cooperated in the coordination of the public release. In general this flaw cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products. This vulnerability is uniquely identified as CVE-2012-3989 since 07/11/2012. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. OSVDB explains the current understanding of the vulnerability: "The vendor reported this issue as a 'potentially exploitable crash', meaning code execution is hypothetically possible, but has not been confirmed. Given that the vendor ranked the issue as 'critical', OSVDB is categorizing this as a code execution vulnerability."

The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 62490 (FreeBSD : mozilla -- multiple vulnerabilities (6e5a9afd-12d3-11e2-b47d-c8600054b392)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165422 (SUSE Enterprise Linux Security Update for Mozilla Firefox (SUSE-SU-2012:1351-1)).

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 (79150), Tenable (62490), SecurityFocus (BID 55927†), OSVDB (86097†) and Secunia (SA50856†). The entries VDB-6636, VDB-6637, VDB-6638 and VDB-6640 are related to this item. Be aware that VulDB is the high quality 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: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.4
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 62490
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (6e5a9afd-12d3-11e2-b47d-c8600054b392)
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: Upgrade
Status: 🔍

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

Upgrade: Firefox/Thunderbird 16

Timelineinfo

07/11/2012 🔍
10/09/2012 +90 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 🔍
04/18/2021 +3110 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2012-80
Researcher: Christian Holler (Ms2ger)
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
Disputed: 🔍

CVE: CVE-2012-3989 (🔍)
GCVE (CVE): GCVE-0-2012-3989
GCVE (VulDB): GCVE-100-6639

OVAL: 🔍

X-Force: 79150
SecurityFocus: 55927 - Mozilla Firefox/SeaMonkey/Thunderbird CVE-2012-3989 Denial of Service Vulnerability
Secunia: 50856 - Mozilla Firefox / Thunderbird Multiple Vulnerabilities, Highly Critical
OSVDB: 86097
SecurityTracker: 1027631 - Mozilla Firefox Multiple Bugs Let Remote Users Execute Arbitrary Code, Spoof Information, and Inject Scripting Code
Vulnerability Center: 36463 - Mozilla Firefox, Thunderbird and SeaMonkey Remote DoS Related to Cast Operation, Medium

See also: 🔍

Entryinfo

Created: 10/12/2012 10:28
Updated: 04/18/2021 07:08
Changes: 10/12/2012 10:28 (89), 01/31/2018 09:54 (7), 04/18/2021 07:08 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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