Google Chrome up to 80.0.3987.162 WebSQL HTML Page out-of-bounds

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 (≈)
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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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Google Chrome. It has been rated as problematic. Affected is an unknown function of the component WebSQL. This manipulation as part of HTML Page causes out-of-bounds. This vulnerability is tracked as CVE-2020-6455. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser). It has been declared as problematic. Affected by this vulnerability is an unknown function of the component WebSQL. The manipulation as part of a HTML Page leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

Out of bounds read in WebSQL in Google Chrome prior to 81.0.4044.92 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

The weakness was disclosed 04/13/2020. This vulnerability is known as CVE-2020-6455 since 01/08/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/14/2020). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 81.0.4044.92 eliminates this vulnerability.

The entries VDB-153098, VDB-153096, VDB-153095 and VDB-153094 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: Out-of-bounds
CWE: CWE-125 / CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 81.0.4044.92

Timelineinfo

01/08/2020 🔍
04/13/2020 +96 days 🔍
04/14/2020 +1 days 🔍
05/09/2025 +1851 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: FEDORA-2020-0e7f1b663b
Status: Confirmed

CVE: CVE-2020-6455 (🔍)
GCVE (CVE): GCVE-0-2020-6455
GCVE (VulDB): GCVE-100-153097
See also: 🔍

Entryinfo

Created: 04/14/2020 09:13
Updated: 05/09/2025 09:28
Changes: 04/14/2020 09:13 (40), 04/14/2020 09:18 (18), 05/18/2024 18:08 (19), 05/09/2025 09:28 (6)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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