Google Chrome 49.0 Blink use after free

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 (≈)
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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.
8.6$5k-$25k0.00

A vulnerability was found in Google Chrome 49.0 (Web Browser). It has been declared as critical. This vulnerability affects some unknown functionality of the component Blink. 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 published 03/02/2016 by Mariusz Mlynski (Cloudfuzzer) with OUSPG as Stable Channel Update, March 2016 as confirmed release notes (Website). The advisory is shared for download at googlechromereleases.blogspot.com. This vulnerability was named CVE-2016-1634 since 01/12/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/09/2022). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 89697 (Debian DSA-3507-1 : chromium-browser - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168634 (OpenSuSE Security Update for Security Chromium (openSUSE-SU-2016:0664-1)).

Upgrading to version 49.0.2623.75 eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (111216), Tenable (89697) and SecurityFocus (BID 84008†). Similar entries are available at VDB-79206, VDB-81156, VDB-81157 and VDB-81158. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89697
Nessus Name: Debian DSA-3507-1 : chromium-browser - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801855
OpenVAS Name: Google Chrome Multiple Vulnerabilities Mar16 (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: Chrome 49.0.2623.75

Timelineinfo

01/12/2016 🔍
03/01/2016 +49 days 🔍
03/02/2016 +0 days 🔍
03/02/2016 +0 days 🔍
03/04/2016 +2 days 🔍
03/05/2016 +1 days 🔍
03/06/2016 +1 days 🔍
07/09/2022 +2315 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: Stable Channel Update, March 2016
Researcher: Mariusz Mlynski (Cloudfuzzer)
Organization: OUSPG
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1634 (🔍)
OVAL: 🔍

X-Force: 111216 - Google Chrome Blink code execution
SecurityFocus: 84008 - Google Chrome Prior to 49.0.2623.75 Multiple Security Vulnerabilities
SecurityTracker: 1035185

See also: 🔍

Entryinfo

Created: 03/04/2016 11:03 AM
Updated: 07/09/2022 07:38 AM
Changes: 03/04/2016 11:03 AM (62), 08/26/2018 09:28 AM (26), 07/09/2022 07:38 AM (4)
Complete: 🔍
Cache ID: 18:20B:40

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