Google Chrome prior 94.0.4606.81 Garbage Collection use after free

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

Summaryinfo

A vulnerability was found in Google Chrome. It has been rated as critical. This affects an unknown part of the component Garbage Collection Handler. The manipulation leads to use after free. This vulnerability is listed as CVE-2021-37977. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Google Chrome (Web Browser). It has been rated as critical. This issue affects an unknown function of the component Garbage Collection Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was presented 10/13/2021. The advisory is shared at chromereleases.googleblog.com. The identification of this vulnerability is CVE-2021-37977. 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 10/13/2021). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 94.0.4606.81 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Bug Bounty Price: 🔍
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 94.0.4606.81

Timelineinfo

08/03/2021 🔍
10/13/2021 +71 days 🔍
10/13/2021 +0 days 🔍
10/20/2021 +7 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2021-37977 (🔍)
GCVE (CVE): GCVE-0-2021-37977
GCVE (VulDB): GCVE-100-184373

Entryinfo

Created: 10/13/2021 15:44
Updated: 10/20/2021 10:16
Changes: 10/13/2021 15:44 (41), 10/20/2021 10:16 (1)
Complete: 🔍
Cache ID: 216::103

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