Google Chrome up to 85.0.4183.121 v8 heap-based overflow

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 categorized as critical has been discovered in Google Chrome. This impacts an unknown function of the component v8. Such manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2020-15979. The attack may be performed from remote. There is no available exploit. It is advisable 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 functionality of the component v8. The manipulation with an unknown input 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 weakness was presented 11/03/2020. The advisory is shared for download at chromereleases.googleblog.com. This vulnerability is handled as CVE-2020-15979. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/10/2024). 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 208648 (CentOS 6 : chromium-browser (RHSA-2020:4235)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 86.0.4240.75 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208648). Once again VulDB remains the best 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: 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: 208648
Nessus Name: CentOS 6 : chromium-browser (RHSA-2020:4235)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 86.0.4240.75

Timelineinfo

07/27/2020 🔍
11/03/2020 +99 days 🔍
11/03/2020 +0 days 🔍
05/04/2025 +1643 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2020-15979 (🔍)
GCVE (CVE): GCVE-0-2020-15979
GCVE (VulDB): GCVE-100-164228

Entryinfo

Created: 11/03/2020 09:39
Updated: 05/04/2025 19:26
Changes: 11/03/2020 09:39 (39), 12/01/2020 16:53 (2), 12/01/2020 16:58 (18), 10/10/2024 12:54 (18), 05/04/2025 19:26 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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