Mozilla Firefox 50.0.2 SVG Animation NotifyTimeChange use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox 50.0.2. It has been classified as critical. This affects the function nsSMILTimeContainer::NotifyTimeChange of the component SVG Animation Handler. This manipulation causes use after free. This vulnerability is handled as CVE-2016-9079. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox 50.0.2 (Web Browser). It has been declared as critical. Affected by this vulnerability is the function nsSMILTimeContainer::NotifyTimeChange of the component SVG Animation 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 bug was discovered 11/30/2016. The weakness was released 11/30/2016 with Mozilla as MFSA 2016-92 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2016-9079 since 10/27/2016. 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. Technical details and also a public exploit are known.

A public exploit has been developed in Ruby and been published 2 months after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as attacked. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 900015 , 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 196637 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3140-1)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/22/2023 with a due date of 07/13/2023:

Apply updates per vendor instructions.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 40888.

The vulnerability is also documented in the databases at Exploit-DB (41151), Zero-Day.cz (363), Tenable (900015) and SecurityFocus (BID 94591†). Additional details are provided at vimeo.com. Entries connected to this vulnerability are available at VDB-93624, VDB-93626, VDB-93627 and VDB-93632. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Programming Language: 🔍
Download: 🔍

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KEV Added: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 900015
Nessus File: 🔍

OpenVAS ID: 881932
OpenVAS Name: CentOS Update for thunderbird CESA-2016:2850 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: firefox_smil_uaf.rb
MetaSploit Name: Firefox nsSMILTimeContainer::NotifyTimeChange() RCE
MetaSploit File: 🔍

Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍
Snort ID: 40888
Snort Message: BROWSER-FIREFOX Mozilla Firefox ESR NotifyTimeChange use after free attempt
Snort Class: 🔍

Timelineinfo

10/27/2016 🔍
11/30/2016 +34 days 🔍
11/30/2016 +0 days 🔍
11/30/2016 +0 days 🔍
11/30/2016 +0 days 🔍
12/02/2016 +2 days 🔍
01/24/2017 +53 days 🔍
01/24/2017 +0 days 🔍
06/11/2018 +502 days 🔍
01/27/2025 +2423 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-92
Organization: Mozilla
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9079 (🔍)
GCVE (CVE): GCVE-0-2016-9079
GCVE (VulDB): GCVE-100-93931

OVAL: 🔍

SecurityFocus: 94591 - Mozilla Firefox CVE-2016-9079 Use After Free Remote Code Execution Vulnerability
SecurityTracker: 1037370

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/02/2016 16:14
Updated: 01/27/2025 23:11
Changes: 12/02/2016 16:14 (88), 08/22/2019 16:20 (6), 10/04/2022 18:27 (4), 04/28/2024 20:19 (24), 07/06/2024 21:39 (2), 09/09/2024 22:30 (1), 01/27/2025 23:11 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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