Mozilla Firefox up to 50 memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 50. Affected by this vulnerability is an unknown functionality. This manipulation causes memory corruption. This vulnerability is handled as CVE-2016-9893. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 50 (Web Browser). Affected by this vulnerability is an unknown functionality. 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.

The bug was discovered 12/13/2016. The weakness was released 12/13/2016 by Christian Holler (Nils) as MFSA 2016-94 as confirmed security advisory (Website). The advisory is shared at mozilla.org. This vulnerability is known as CVE-2016-9893 since 12/07/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 900006 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196652 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3155-1)).

Upgrading to version 50.1 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 (900006) and SecurityFocus (BID 94885†). Entries connected to this vulnerability are available at VDB-94489, VDB-94490, VDB-94491 and VDB-94492. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Firefox ESR 45.6

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 900006
Nessus File: 🔍

OpenVAS ID: 881932
OpenVAS Name: CentOS Update for thunderbird CESA-2016:2973 centos7
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 50.1

Timelineinfo

12/07/2016 🔍
12/13/2016 +6 days 🔍
12/13/2016 +0 days 🔍
12/13/2016 +0 days 🔍
12/13/2016 +0 days 🔍
12/15/2016 +2 days 🔍
06/11/2018 +542 days 🔍
11/25/2025 +2725 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-94
Researcher: Christian Holler (Nils)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9893 (🔍)
GCVE (CVE): GCVE-0-2016-9893
GCVE (VulDB): GCVE-100-94501

OVAL: 🔍

SecurityFocus: 94885 - Mozilla Firefox MFSA2016-94 and MFSA2016-95 Multiple Security Vulnerabilities
SecurityTracker: 1037461

See also: 🔍

Entryinfo

Created: 12/15/2016 10:45
Updated: 11/25/2025 23:18
Changes: 12/15/2016 10:45 (72), 07/07/2019 22:20 (7), 10/08/2022 17:49 (4), 11/25/2025 23:18 (15)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!