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.
9.5	$0-$5k	0.00

A vulnerability classified as critical was found in Google Chrome 27.0.1453.93 (Web Browser). This vulnerability affects the function AnalyserNode::AnalyserNode of the file modules/webaudio/AnalyserNode.cpp. The manipulation of the argument addInput/addOutput with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Web Audio implementation in Google Chrome before 27.0.1453.93 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors.

The weakness was published 04/26/2013 by Atte Kettunen (OUSPG) with Oulu University Secure Programming Group as 222136 as confirmed advisory (Website). The advisory is shared for download at code.google.com. The public release has been coordinated with the vendor. This vulnerability was named CVE-2013-2845 since 04/11/2013. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/17/2021). 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 66676 (Debian DSA-2695-1 : chromium-browser - several issues), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121201 (Google Chrome Prior to 27.0.1453.93 Multiple Vulnerabilities).

Upgrading to version 27.0.1453.93 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 databases at X-Force (84408) and Tenable (66676). Similar entries are available at 8503, 8559, 8661 and 8840.

Productinfo

Type

• Web Browser

Vendor

• Google

Name

• Chrome

Version

• 27.0.1453.93

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: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 66676
Nessus Name: Debian DSA-2695-1 : chromium-browser - several issues
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892695
OpenVAS Name: Debian Security Advisory DSA 2695-1 (chromium-browser - several issues
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 27.0.1453.93
Patch: trac.webkit.org

Timelineinfo

04/11/2013 🔍
04/26/2013 +15 days 🔍
04/26/2013 +0 days 🔍
05/21/2013 +25 days 🔍
05/21/2013 +0 days 🔍
05/22/2013 +1 days 🔍
05/22/2013 +0 days 🔍
05/26/2013 +4 days 🔍
06/27/2013 +32 days 🔍
05/17/2021 +2881 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 222136
Researcher: Atte Kettunen (OUSPG)
Organization: Oulu University Secure Programming Group
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-2845 (🔍)
OVAL: 🔍

X-Force: 84408
Vulnerability Center: 39694 - Google Chrome <27.0.1453.93 Web Audio Implementation Allows Remote DoS - CVE-2013-2845, Medium
SecurityFocus: 60076 - WebKit CVE-2013-2845 Multiple Memory Corruption Vulnerabilities
Secunia: 53430 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 94559

See also: 🔍

Entryinfo

Created: 06/27/2013 12:07
Updated: 05/17/2021 12:22
Changes: 06/27/2013 12:07 (88), 04/30/2017 12:40 (4), 05/17/2021 12:22 (2)
Complete: 🔍

Discussion

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