VDB-8183 · CVE-2011-1791 · ID 82503

WebkitGTK+ HTML Render Engine 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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in WebkitGTK+. It has been rated as critical. Affected is an unknown function of the component HTML Render Engine. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2011-1791. In addition, an exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in WebkitGTK+ (Web Browser) (version unknown). This issue affects an unknown function of the component HTML Render Engine. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was presented 03/30/2011 by Abhishek Arya (Inferno) with Google Chrome Security as 82503 as not defined changelog entry (Website). It is possible to read the advisory at trac.webkit.org. The public release was coordinated in cooperation with the project team. The identification of this vulnerability is CVE-2011-1791 since 04/20/2011. The exploitation is known to be difficult. 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 exploit is available at code.google.com. It is declared as proof-of-concept.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at bugs.webkit.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (92061†). See VDB-8182 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Web Browser

Name

WebkitGTK+

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: bugs.webkit.org

Timelineinfo

03/30/2011 🔍
03/30/2011 +0 days 🔍
04/20/2011 +21 days 🔍
04/08/2013 +719 days 🔍
05/05/2018 +1853 days 🔍

Sourcesinfo

Advisory: 82503
Researcher: Abhishek Arya (Inferno)
Organization: Google Chrome Security
Status: Not defined
Coordinated: 🔍

CVE: CVE-2011-1791 (🔍)
GCVE (CVE): GCVE-0-2011-1791
GCVE (VulDB): GCVE-100-8183
OSVDB: 92061

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

Entryinfo

Created: 04/08/2013 16:38
Updated: 05/05/2018 18:00
Changes: 04/08/2013 16:38 (51), 05/05/2018 18:00 (3)
Complete: 🔍
Committer: olku
Cache ID: 216:F95:103