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.
6.7	$5k-$25k	0.00

A vulnerability was found in Google Chrome 16.0.912.77 (Web Browser). It has been rated as critical. This issue affects an unknown functionality of the component Column Span Variable Casting Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is availability. The summary by CVE is:

Google Chrome before 17.0.963.46 does not properly perform casts of variables during handling of a column span, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted document.

The weakness was disclosed 02/08/2012 by Collin Payne (miaubiz) with Chromium Development Community (Website). It is possible to read the advisory at lists.apple.com. The public release has been coordinated in cooperation with Google. The identification of this vulnerability is CVE-2011-3958 since 10/01/2011. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/24/2018). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 57883 (FreeBSD : chromium -- multiple vulnerabilities (fe1976c2-5317-11e1-9e99-00262d5ed8ee)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119930 (Google Chrome Prior to 17.0.963.46 Multiple Vulnerabilities).

Upgrading to version 17.0.963.46 eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at trac.webkit.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (57883). The entries 4604, 4613, 4609 and 4610 are pretty similar.

Productinfo

Type

• Web Browser

Vendor

• Google

Name

• Chrome

Version

• 16.0.912.77

License

• free

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 57883
Nessus Name: FreeBSD : chromium -- multiple vulnerabilities (fe1976c2-5317-11e1-9e99-00262d5ed8ee)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 70732
OpenVAS Name: FreeBSD Ports: chromium
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 17.0.963.46
Patch: trac.webkit.org

Timelineinfo

10/01/2011 🔍
01/21/2012 +112 days 🔍
02/08/2012 +18 days 🔍
02/08/2012 +0 days 🔍
02/08/2012 +0 days 🔍
02/08/2012 +0 days 🔍
02/09/2012 +1 days 🔍
02/09/2012 +0 days 🔍
02/10/2012 +1 days 🔍
04/24/2018 +2265 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: lists.apple.com
Researcher: Collin Payne (miaubiz)
Organization: Chromium Development Community
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2011-3958 (🔍)
OVAL: 🔍

SecurityTracker: 1026654
SecurityFocus: 51911
Secunia: 47938 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 78938

See also: 🔍

Entryinfo

Created: 01/21/2012 01:00
Updated: 04/24/2018 09:20
Changes: 01/21/2012 01:00 (80), 04/24/2018 09:20 (6)
Complete: 🔍

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