Google Chrome up to 83.0.4103.116 Skia HTML Page buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Google Chrome and classified as critical. This affects an unknown function of the component Skia. The manipulation as part of HTML Page leads to buffer overflow. This vulnerability is listed as CVE-2020-6520. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser). It has been rated as critical. This issue affects an unknown part of the component Skia. The manipulation as part of a HTML Page leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Skia in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

The weakness was presented 07/22/2020 (Website). It is possible to read the advisory at chromereleases.googleblog.com. The identification of this vulnerability is CVE-2020-6520 since 01/08/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around 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 84.0.4147.89 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208631). See VDB-158893, VDB-158894, VDB-158895 and VDB-158896 for similar entries. Be aware that VulDB is the high quality source for 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: 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: Buffer overflow
CWE: CWE-120 / 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 84.0.4147.89

Timelineinfo

01/08/2020 🔍
07/22/2020 +196 days 🔍
07/23/2020 +1 days 🔍
05/05/2025 +1747 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2020-6520 (🔍)
GCVE (CVE): GCVE-0-2020-6520
GCVE (VulDB): GCVE-100-158903
See also: 🔍

Entryinfo

Created: 07/23/2020 09:42
Updated: 05/05/2025 08:06
Changes: 07/23/2020 09:42 (42), 07/23/2020 09:47 (18), 10/12/2024 17:14 (19), 05/05/2025 08:06 (5)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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