Google Chrome up to 49 Blink LayoutBlock.cpp input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.1$5k-$25k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Google Chrome up to 49. Impacted is an unknown function of the file WebKit/Source/core/layout/LayoutBlock.cpp of the component Blink. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2016-2844. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Google Chrome up to 49 (Web Browser). It has been declared as very critical. This vulnerability affects an unknown part of the file WebKit/Source/core/layout/LayoutBlock.cpp of the component Blink. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

WebKit/Source/core/layout/LayoutBlock.cpp in Blink, as used in Google Chrome before 49.0.2623.75, does not properly determine when anonymous block wrappers may exist, which allows remote attackers to cause a denial of service (incorrect cast and assertion failure) or possibly have unspecified other impact via crafted JavaScript code.

The weakness was released 03/06/2016 (Website). The advisory is shared for download at codereview.chromium.org. This vulnerability was named CVE-2016-2844 since 03/04/2016. 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 $5k-$25k (estimation calculated on 07/09/2022). 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 89865 (Ubuntu 14.04 LTS / 15.10 : oxide-qt vulnerabilities (USN-2920-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196429 (Ubuntu Security Notification for Oxide-qt Vulnerabilities (USN-2920-1)).

Upgrading to version 49.0.2623.75 eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (89865), SecurityFocus (BID 84170†) and Vulnerability Center (SBV-57026†). Entries connected to this vulnerability are available at VDB-79206, VDB-81156, VDB-81157 and VDB-81158. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.1

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89865
Nessus Name: Ubuntu 14.04 LTS / 15.10 : oxide-qt vulnerabilities (USN-2920-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801855
OpenVAS Name: Google Chrome Multiple Vulnerabilities Mar16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Chrome 49.0.2623.75

Timelineinfo

03/01/2016 🔍
03/04/2016 +3 days 🔍
03/04/2016 +0 days 🔍
03/05/2016 +0 days 🔍
03/06/2016 +1 days 🔍
03/06/2016 +0 days 🔍
03/06/2016 +0 days 🔍
03/09/2016 +3 days 🔍
03/10/2016 +1 days 🔍
07/09/2022 +2311 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: USN-2920-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2844 (🔍)
GCVE (CVE): GCVE-0-2016-2844
GCVE (VulDB): GCVE-100-81196
SecurityFocus: 84170 - Google Chrome CVE-2016-2844 Denial of Service Vulnerability
SecurityTracker: 1035185
Vulnerability Center: 57026 - Google Chrome before 49.0.2623.75 Remote DoS or Other Ompact in Blink, via Crafted JavaScript Code, Critical

See also: 🔍

Entryinfo

Created: 03/06/2016 19:09
Updated: 07/09/2022 10:30
Changes: 03/06/2016 19:09 (66), 09/01/2018 08:47 (24), 07/09/2022 10:30 (4)
Complete: 🔍
Cache ID: 216:8DF:103

Once again VulDB remains the best source for vulnerability data.

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