Google Chrome up to 83.0.4103.116 WebRTC Stream heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Google Chrome. This affects an unknown part of the component WebRTC. The manipulation as part of Stream leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2020-6514. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chrome (Web Browser). This issue affects an unknown code of the component WebRTC. The manipulation as part of a Stream leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potentially exploit heap corruption via a crafted SCTP stream.

The weakness was disclosed 07/22/2020 (Website). The advisory is shared at chromereleases.googleblog.com. The identification of this vulnerability is CVE-2020-6514 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. 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 10/12/2024). 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). The entries VDB-158893, VDB-158894, VDB-158895 and VDB-158896 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 6.5
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: Heap-based overflow
CWE: CWE-122 / 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
Confirmation: 🔍

CVE: CVE-2020-6514 (🔍)
GCVE (CVE): GCVE-0-2020-6514
GCVE (VulDB): GCVE-100-158897
See also: 🔍

Entryinfo

Created: 07/23/2020 09:38
Updated: 05/05/2025 10:40
Changes: 07/23/2020 09:38 (42), 07/23/2020 09:43 (18), 11/05/2020 12:01 (1), 10/12/2024 09:00 (19), 05/05/2025 10:40 (5)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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