Google Chrome 49.0 Skia information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Google Chrome 49.0. It has been classified as problematic. Impacted is an unknown function of the component Skia. This manipulation causes information disclosure. This vulnerability appears as CVE-2016-1637. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Google Chrome 49.0 (Web Browser). Affected by this vulnerability is an unknown code block of the component Skia. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The SkATan2_255 function in effects/gradients/SkSweepGradient.cpp in Skia, as used in Google Chrome before 49.0.2623.75, mishandles arctangent calculations, which allows remote attackers to obtain sensitive information via a crafted web site.

The weakness was presented 03/02/2016 by Mariusz Mlynski (Cloudfuzzer) with OUSPG as Stable Channel Update, March 2016 as confirmed release notes (Website). It is possible to read the advisory at googlechromereleases.blogspot.com. This vulnerability is known as CVE-2016-1637 since 01/12/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 89697 (Debian DSA-3507-1 : chromium-browser - security update), 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 168634 (OpenSuSE Security Update for Security Chromium (openSUSE-SU-2016:0664-1)).

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 immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (111219), Tenable (89697), SecurityFocus (BID 84008†) and Vulnerability Center (SBV-56961†). See VDB-79206, VDB-81156, VDB-81157 and VDB-81158 for similar entries. Statistical analysis made it clear that VulDB provides the best quality 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: 8.2
VulDB Meta Temp Score: 7.5

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89697
Nessus Name: Debian DSA-3507-1 : chromium-browser - security update
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: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Chrome 49.0.2623.75

Timelineinfo

01/12/2016 🔍
03/01/2016 +49 days 🔍
03/01/2016 +0 days 🔍
03/02/2016 +0 days 🔍
03/02/2016 +0 days 🔍
03/02/2016 +0 days 🔍
03/04/2016 +1 days 🔍
03/05/2016 +1 days 🔍
03/06/2016 +1 days 🔍
07/09/2022 +2315 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: Stable Channel Update, March 2016
Researcher: Mariusz Mlynski (Cloudfuzzer)
Organization: OUSPG
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1637 (🔍)
GCVE (CVE): GCVE-0-2016-1637
GCVE (VulDB): GCVE-100-81163

OVAL: 🔍

X-Force: 111219 - Google Chrome Skia information disclosure
SecurityFocus: 84008 - Google Chrome Prior to 49.0.2623.75 Multiple Security Vulnerabilities
SecurityTracker: 1035185
Vulnerability Center: 56961 - Google Chrome <49.0.2623.75 Remote Information Disclosure in Skia - CVE-2016-1637, Medium

See also: 🔍

Entryinfo

Created: 03/04/2016 11:04
Updated: 07/09/2022 07:57
Changes: 03/04/2016 11:04 (75), 08/31/2018 10:08 (20), 07/09/2022 07:57 (3)
Complete: 🔍
Cache ID: 216::103

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