Google Chrome up to 83.0.4103.88 HTML Page use after free

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.
7.8$5k-$25k0.00

Summaryinfo

A vulnerability was found in Google Chrome and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation as part of HTML Page results in use after free. This vulnerability is known as CVE-2020-6493. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Chrome (Web Browser). Affected is an unknown code. The manipulation as part of a HTML Page leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Use after free in WebAuthentication in Google Chrome prior to 83.0.4103.97 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

The weakness was published 06/03/2020. This vulnerability is traded as CVE-2020-6493 since 01/08/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/14/2024). 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 208592 (CentOS 6 : chromium-browser (RHSA-2020:2544)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 83.0.4103.97 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208592). Similar entries are available at VDB-156094, VDB-156093, VDB-156092 and VDB-156091. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.6
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: Use after free
CWE: CWE-416 / 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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Nessus ID: 208592
Nessus Name: CentOS 6 : chromium-browser (RHSA-2020:2544)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 83.0.4103.97

Timelineinfo

01/08/2020 🔍
06/03/2020 +147 days 🔍
06/04/2020 +1 days 🔍
05/05/2025 +1796 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Status: Confirmed

CVE: CVE-2020-6493 (🔍)
GCVE (CVE): GCVE-0-2020-6493
GCVE (VulDB): GCVE-100-156090
See also: 🔍

Entryinfo

Created: 06/04/2020 16:04
Updated: 05/05/2025 15:11
Changes: 06/04/2020 16:04 (39), 06/04/2020 16:09 (18), 10/14/2024 17:54 (19), 05/05/2025 15:11 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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