Google Chrome WebVTTParser.cpp createDocumentFragmentFromCueText denial of service

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.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Google Chrome. It has been classified as problematic. The affected element is the function WebVTTParser::createDocumentFragmentFromCueText of the file html/track/WebVTTParser.cpp. The manipulation leads to denial of service. The attack is possible to be carried out remotely. Moreover, an exploit is present. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser) (unknown version). It has been rated as problematic. This issue affects the function WebVTTParser::createDocumentFragmentFromCueText of the file html/track/WebVTTParser.cpp. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was disclosed 08/10/2013 as not defined changelog entry (Website). The advisory is shared at chromiumcodereview.appspot.com. The public release has been coordinated in cooperation with Google. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The exploit is available at chromium.googlesource.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

Upgrading 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 chromium.googlesource.com. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the vulnerability database at OSVDB (96149†). The entries VDB-9916, VDB-9915 and VDB-9914 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Web Browser

Vendor

Google

Name

Chrome

License

free

Website

Vendor: https://www.google.com/
Product: https://www.google.com/chrome/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: 🔍

0-Day Time: 🔍

Upgrade: chrome.google.com
Patch: chromium.googlesource.com

Timelineinfo

08/10/2013 🔍
08/12/2013 +2 days 🔍
06/07/2017 +1395 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromiumcodereview.appspot.com
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

GCVE (VulDB): GCVE-100-9917
OSVDB: 96149 - Google Chrome WebVTTParser::createDocumentFragmentFromCueText Function Empty Text Handling DoS

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

Entryinfo

Created: 08/12/2013 17:22
Updated: 06/07/2017 15:07
Changes: 08/12/2013 17:22 (50), 06/07/2017 15:07 (2)
Complete: 🔍
Committer:
Cache ID: 216:DB8:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.