Mozilla Firefox up to 49 ReplaceOrInsertBefore use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Mozilla Firefox up to 49. The impacted element is the function nsINode::ReplaceOrInsertBefore. Executing a manipulation can lead to use after free. This vulnerability appears as CVE-2016-9067. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 49 (Web Browser). This vulnerability affects the function nsINode::ReplaceOrInsertBefore. 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. CVE summarizes:

Two use-after-free errors during DOM operations resulting in potentially exploitable crashes. This vulnerability affects Firefox < 50.

The weakness was presented 11/15/2016 as MFSA 2016-89 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability was named CVE-2016-9067. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 95590 (openSUSE Security Update : Mozilla Firefox / Thunderbird and NSS (openSUSE-2016-1407)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370225 (Mozilla Firefox Multiple Vulnerabilities (MFSA2016-89,MFSA2016-90)).

Upgrading to version 50 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 (95590), SecurityFocus (BID 94337†) and SecurityTracker (ID 1037298†). See VDB-93624, VDB-93625, VDB-93626 and VDB-93627 for similar entries. Once again VulDB remains the best source for 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: 6.3
VulDB Meta Temp Score: 6.0

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

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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95590
Nessus Name: openSUSE Security Update : Mozilla Firefox / Thunderbird and NSS (openSUSE-2016-1407)
Nessus File: 🔍
Nessus Family: 🔍

OpenVAS ID: 802170
OpenVAS Name: Mozilla Firefox Security Updates (mfsa_2016-89_2016-90)-Windows
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

Timelineinfo

11/15/2016 🔍
11/15/2016 +0 days 🔍
11/16/2016 +1 days 🔍
11/16/2016 +0 days 🔍
01/31/2018 +441 days 🔍
06/11/2018 +130 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-89
Status: Confirmed

CVE: CVE-2016-9067 (🔍)
GCVE (CVE): GCVE-0-2016-9067
GCVE (VulDB): GCVE-100-93628
SecurityFocus: 94337
SecurityTracker: 1037298 - Mozilla Firefox Multiple Bugs Let Remote Users Execute Arbitrary Code, Bypass Security Restrictions, Spoof URLs, Modify Files, and Obtain Potentially Sensitive Information

See also: 🔍

Entryinfo

Created: 11/16/2016 14:03
Updated: 01/31/2018 09:56
Changes: 11/16/2016 14:03 (46), 01/31/2018 09:56 (23)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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