Google Chrome prior 93.0.4577.82 V8 out-of-bounds write

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.
6.0$5k-$25k0.00

A vulnerability classified as critical was found in Google Chrome (Web Browser). Affected by this vulnerability is an unknown functionality of the component V8. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 09/15/2021. The advisory is shared at chromereleases.googleblog.com. This vulnerability is known as CVE-2021-30632. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a private exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/15/2021). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as highly functional.

Upgrading to version 93.0.4577.82 eliminates this vulnerability.

Productinfo

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Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

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

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrome 93.0.4577.82

Timelineinfo

04/13/2021 🔍
09/15/2021 +155 days 🔍
09/15/2021 +0 days 🔍
09/17/2021 +2 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2021-30632 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/15/2021 08:04
Updated: 09/17/2021 15:59
Changes: 09/15/2021 08:04 (42), 09/17/2021 15:59 (1)
Complete: 🔍

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