Google Chrome up to 84.0.4147.89 CSS HTML Page use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$5k-$25k0.00

Summaryinfo

A vulnerability was found in Google Chrome and classified as critical. Affected by this issue is some unknown functionality of the component CSS Handler. Such manipulation as part of HTML Page leads to use after free. This vulnerability is referenced as CVE-2020-6539. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser) and classified as critical. Affected by this issue is an unknown code of the component CSS Handler. The manipulation as part of a HTML Page leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Use after free in CSS in Google Chrome prior to 84.0.4147.105 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

The weakness was published 09/21/2020 (Website). The advisory is available at chromereleases.googleblog.com. This vulnerability is handled as CVE-2020-6539 since 01/08/2020. The attack may be launched remotely. No form of authentication is required for exploitation. 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 10/12/2024). 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 208631 (CentOS 6 : chromium-browser (RHSA-2020:3377)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 84.0.4147.105 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208631). Similar entries are available at VDB-161687, VDB-161688, VDB-161689 and VDB-161691. 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: 6.3
VulDB Meta Temp Score: 6.0

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

CVSSv2info

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

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: 208631
Nessus Name: CentOS 6 : chromium-browser (RHSA-2020:3377)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 84.0.4147.105

Timelineinfo

01/08/2020 🔍
09/21/2020 +257 days 🔍
09/22/2020 +1 days 🔍
05/05/2025 +1686 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2020-6539 (🔍)
GCVE (CVE): GCVE-0-2020-6539
GCVE (VulDB): GCVE-100-161690
See also: 🔍

Entryinfo

Created: 09/22/2020 06:52
Updated: 05/05/2025 03:03
Changes: 09/22/2020 06:52 (41), 09/22/2020 06:57 (4), 10/12/2024 19:13 (17), 05/05/2025 03:03 (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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