VDB-12018 · CVE-2013-6644 · BID 64805

Google Chrome prior 32.0.1700.77 PolygonShape.cpp shapePaddingBounds memory corruption

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, which was classified as critical, was found in Google Chrome (Web Browser). Affected is the function PolygonShape::shapePaddingBounds of the file rendering/shapes/PolygonShape.cpp. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. CVE summarizes:

Multiple unspecified vulnerabilities in Google Chrome before 32.0.1700.76 on Windows and before 32.0.1700.77 on Mac OS X and Linux allow attackers to cause a denial of service or possibly have other impact via unknown vectors.

The weakness was presented 11/14/2013 by Hans Muller as Tracking bug for internal security fixes for Chrome 32, Release 0 as confirmed advisory (Website). The advisory is available at code.google.com. The public release was coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2013-6644 since 11/05/2013. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 06/08/2021). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 72538 (Debian DSA-2862-1 : chromium-browser - several vulnerabilities), 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 122879 (Debian Security Update for chromium-browser (DSA 2862-1)).

Upgrading to version 32.0.1700.77 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 (72538). Further details are available at bugs.webkit.org. See 11958, 11959, 11960 and 11961 for similar entries.

Affected

WebKitGTK+ 2.3.1/2.2.3

Productinfo

Type

Web Browser

Vendor

Google

Name

Chrome

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
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

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: 72538
Nessus Name: Debian DSA-2862-1 : chromium-browser - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 702862
OpenVAS Name: Debian Security Advisory DSA 2862-1 (chromium-browser - several vulnerabilities
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 32.0.1700.77
Patch: trac.webkit.org

Timelineinfo

11/05/2013 🔍
11/14/2013 +9 days 🔍
11/14/2013 +0 days 🔍
01/14/2014 +60 days 🔍
01/14/2014 +0 days 🔍
01/16/2014 +2 days 🔍
01/21/2014 +5 days 🔍
02/17/2014 +27 days 🔍
06/08/2021 +2668 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: Tracking bug for internal security fixes for Chrome 32, Release 0
Researcher: Hans Muller
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-6644 (🔍)
OVAL: 🔍
IAVM: 🔍

SecurityFocus: 64805
Secunia: 56248 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 102307

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

Entryinfo

Created: 01/21/2014 15:34
Updated: 06/08/2021 14:35
Changes: 01/21/2014 15:34 (81), 05/17/2018 08:36 (7), 06/08/2021 14:35 (4)
Complete: 🔍