Google Chrome up to 83.0.4103.88 on macOS Payments 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.
7.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Google Chrome on macOS. It has been rated as critical. This vulnerability affects unknown code of the component Payments. Performing a manipulation as part of HTML Page results in use after free. This vulnerability was named CVE-2020-6496. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Google Chrome on macOS (Web Browser). It has been classified as critical. This affects an unknown function of the component Payments. 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. The summary by CVE is:

Use after free in payments in Google Chrome on MacOS prior to 83.0.4103.97 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

The weakness was presented 06/03/2020. This vulnerability is uniquely identified as CVE-2020-6496 since 01/08/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 $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). See VDB-156097, VDB-156096, VDB-156095 and VDB-156094 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: 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-2020-6496 (🔍)
GCVE (CVE): GCVE-0-2020-6496
GCVE (VulDB): GCVE-100-156093
See also: 🔍

Entryinfo

Created: 06/04/2020 16:05
Updated: 05/05/2025 13:06
Changes: 06/04/2020 16:05 (41), 06/04/2020 16:10 (18), 10/14/2024 17:54 (19), 05/05/2025 13:06 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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