Mozilla Firefox up to 49.x DOM windows.create ReplaceOrInsertBefore use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

A vulnerability was found in Mozilla Firefox up to 49.x (Web Browser). It has been classified as critical. Affected is the function nsINode::ReplaceOrInsertBefore of the file windows.create of the component DOM Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A use-after-free in nsINode::ReplaceOrInsertBefore during DOM operations resulting in potentially exploitable crashes. This vulnerability affects Firefox < 50.

The bug was discovered 11/15/2016. The weakness was shared 10/18/2018 by Abdulrahman Alqabandi (Nils) with Mozilla as Bug 1308922 as not defined bug report (Bugzilla). The advisory is available at bugzilla.mozilla.org. This vulnerability is traded as CVE-2016-9069 since 10/27/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/30/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $5k-$25k. 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 and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196627 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3124-1)).

Upgrading to version 50 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95590) and SecurityFocus (BID 94337†).

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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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: 🔍

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 Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for Mozilla openSUSE-SU-2016:3011-1 (Mozilla)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 50

Timelineinfo

10/27/2016 🔍
11/15/2016 +19 days 🔍
11/15/2016 +0 days 🔍
12/04/2016 +19 days 🔍
12/07/2016 +2 days 🔍
10/18/2018 +679 days 🔍
10/18/2018 +0 days 🔍
10/19/2018 +1 days 🔍
05/30/2023 +1684 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1308922
Researcher: Abdulrahman Alqabandi (Nils)
Organization: Mozilla
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-9069 (🔍)
SecurityFocus: 94337 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1037298

Entryinfo

Created: 10/19/2018 06:37 AM
Updated: 05/30/2023 10:00 AM
Changes: 10/19/2018 06:37 AM (81), 04/05/2020 11:43 AM (7), 05/30/2023 10:00 AM (4)
Complete: 🔍
Cache ID: 44:E91:40

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