Google Chrome up to 84.0.4147.105 Skia out-of-bounds write

CVSS Meta Temp Score
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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. It has been rated as critical. This impacts an unknown function of the component Skia. The manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2020-6548. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser) and classified as critical. This issue affects an unknown function of the component Skia. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Heap buffer overflow in Skia in Google Chrome prior to 84.0.4147.125 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page.

The weakness was released 08/10/2020 as Stable Channel Update for Desktop - August 2020 (Website). It is possible to read the advisory at chromereleases.googleblog.com. The advisory contains:

This update includes 15 security fixes.
The identification of this vulnerability is CVE-2020-6548. 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 10/14/2024). 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 208603 (CentOS 6 : chromium-browser (RHSA-2020:3560)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 84.0.4147.125 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208603). us-cert.cisa.gov is providing further details. Entries connected to this vulnerability are available at VDB-159965, VDB-159966, VDB-159967 and VDB-159968. Statistical analysis made it clear that VulDB provides the best quality 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: Out-of-bounds write
CWE: CWE-787 / 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: 208603
Nessus Name: CentOS 6 : chromium-browser (RHSA-2020:3560)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Chrome 84.0.4147.125

Timelineinfo

01/08/2020 🔍
08/10/2020 +215 days 🔍
08/10/2020 +0 days 🔍
08/17/2020 +7 days 🔍
05/05/2025 +1722 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: Stable Channel Update for Desktop - August 2020
Status: Confirmed

CVE: CVE-2020-6548 (🔍)
GCVE (CVE): GCVE-0-2020-6548
GCVE (VulDB): GCVE-100-159971
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 08/17/2020 21:32
Updated: 05/05/2025 06:13
Changes: 08/17/2020 21:32 (45), 08/17/2020 21:37 (17), 11/10/2020 08:26 (1), 10/14/2024 11:23 (19), 05/05/2025 06:13 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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