Google Chrome up to 98.0.4758.102 Accessibility read/write 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 (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
7.9$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Google Chrome. Affected by this issue is some unknown functionality of the file read/write of the component Accessibility. Executing a manipulation can lead to use after free. This vulnerability is registered as CVE-2022-4921. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Google Chrome (Web Browser). This vulnerability affects some unknown functionality of the file read/write of the component Accessibility. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Use after free in Accessibility in Google Chrome prior to 99.0.4844.51 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: Low)

The weakness was published 07/29/2023. The advisory is shared for download at chromereleases.googleblog.com. This vulnerability was named CVE-2022-4921 since 02/12/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/03/2024). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 99.0.4844.51 eliminates this vulnerability. The upgrade is hosted for download at chromereleases.googleblog.com.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

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

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

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: 🔍

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 99.0.4844.51

Timelineinfo

02/12/2023 🔍
07/29/2023 +166 days 🔍
07/29/2023 +0 days 🔍
04/24/2025 +635 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: FEDORA-2023-ea7128b5ce
Status: Confirmed

CVE: CVE-2022-4921 (🔍)
GCVE (CVE): GCVE-0-2022-4921
GCVE (VulDB): GCVE-100-235720

Entryinfo

Created: 07/29/2023 06:41
Updated: 04/24/2025 19:59
Changes: 07/29/2023 06:41 (42), 08/23/2023 10:52 (1), 08/23/2023 10:57 (11), 10/03/2024 17:17 (27), 04/24/2025 19:59 (3)
Complete: 🔍
Cache ID: 216::103

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