Mozilla Firefox up to 47 Toplevel Menu KeyDown use after free

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 47. It has been rated as problematic. This affects the function nsXULPopupManager::KeyDown of the component Toplevel Menu Handler. This manipulation causes use after free. This vulnerability appears as CVE-2016-5254. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 47 (Web Browser). Affected by this vulnerability is the function nsXULPopupManager::KeyDown of the component Toplevel Menu Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 08/02/2016 by Abhishek Arya (Inferno) with Google Chrome Security Team as MFSA 2016-70 as confirmed security advisory (Website). The advisory is shared at mozilla.org. This vulnerability is known as CVE-2016-5254 since 06/03/2016. The exploitation appears to be easy. An attack has to be approached locally. The successful exploitation requires a single authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/09/2022).

The vulnerability scanner Nessus provides a plugin with the ID 92785 (Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : firefox vulnerabilities (USN-3044-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157233 (Oracle Enterprise Linux Security Update for firefox (ELSA-2016-1551)).

Upgrading to version 48 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 (92785), SecurityFocus (BID 92261†) and SecurityTracker (ID 1036508†). See VDB-90424, VDB-90425, VDB-90426 and VDB-90427 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92785
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : firefox vulnerabilities (USN-3044-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 65178
OpenVAS Name: Mozilla Firefox Esr Security Updates( mfsa_2016-62_2016-84 )-MAC OS X
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 48

Timelineinfo

06/03/2016 🔍
08/02/2016 +60 days 🔍
08/02/2016 +0 days 🔍
08/02/2016 +0 days 🔍
08/03/2016 +1 days 🔍
08/04/2016 +1 days 🔍
08/04/2016 +0 days 🔍
08/08/2016 +4 days 🔍
09/09/2022 +2223 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-70
Researcher: Abhishek Arya (Inferno)
Organization: Google Chrome Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5254 (🔍)
GCVE (CVE): GCVE-0-2016-5254
GCVE (VulDB): GCVE-100-90433

OVAL: 🔍

SecurityFocus: 92261 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1036508

See also: 🔍

Entryinfo

Created: 08/04/2016 09:21
Updated: 09/09/2022 17:17
Changes: 08/04/2016 09:21 (77), 03/16/2019 21:01 (12), 09/09/2022 17:17 (3)
Complete: 🔍
Cache ID: 216:8C6:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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