External risk intelligence

Google Chrome Type Confusion Vulnerability

CVE advisoryKnown Exploit

CVE-2022-4262

A type confusion vulnerability in Google Chrome's V8 engine could allow remote attackers to corrupt data via a malicious HTML page. This impacts organizations by potentially enabling attackers to execute code, posing a business risk.

1Halo Surface Signal

Google Chrome

before 108.0.5359.94

External exposure likelihood

Halo Surface Signal score for CVE-2022-4262

This vulnerability exists in the V8 engine within web browsers. Exploitation requires a user to navigate to a crafted HTML page, meaning the attack surface is client-side software rather than a public-facing network service or infrastructure component.

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability exists within the V8 JavaScript engine used by Google Chrome. This flaw allows for a type confusion issue, which could lead to heap corruption. This type of vulnerability can potentially impact organizations by allowing attackers to execute malicious code, leading to significant business risks.

Vulnerable: Google Chrome's V8 engine
Flaw: Type confusion leading to heap corruption
Impact: Potential for malicious code execution

Attack Path

How an attacker could exploit the issue

This vulnerability allows attackers to potentially gain control by exploiting a type confusion flaw in the V8 JavaScript engine used by Google Chrome. An attacker could craft a malicious webpage that, when visited by a user, triggers the vulnerability. This could lead to heap corruption, potentially allowing the attacker to execute arbitrary code or impact system stability.

Requires a crafted HTML page.
Attacker targets browser users.
Trigger leads to heap corruption.

Live Threat

Current exploitation, exposure, and threat context

A vulnerability exists in Google Chrome's V8 JavaScript engine that could allow a remote attacker to exploit heap corruption. Exploitation requires the user to interact with a crafted HTML page, potentially leading to arbitrary code execution. This vulnerability has been confirmed to be exploited in the wild and is listed on the CISA Known Exploited Vulnerabilities Catalog, indicating a significant business risk.

Attackers likely possess moderate to high skill.
Requires user interaction with a malicious page.
High business risk; treat as urgent.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in the V8 engine of Google Chrome presents a risk of heap corruption if users access a specially crafted HTML page. Organizations should focus on identifying and mitigating potential exposure. The vendor has released a fix that should be applied and validated. Ongoing monitoring for related security events is recommended.

Find affected Chrome assets.
Reduce exposure or isolate risk.
Fix, verify, and monitor.

Frequently asked questions

What is the V8 engine in Google Chrome and its role?

The V8 engine is the component within Google Chrome that interprets and executes JavaScript code. It is essential for making web pages interactive and running web applications.

How does CVE-2022-4262 exploit a type confusion flaw in the V8 engine?

CVE-2022-4262 is a type confusion vulnerability in Google Chrome's V8 engine. This weakness means the software misinterprets data types, which an attacker can exploit to corrupt memory (heap corruption), potentially enabling the execution of malicious code.

What is required for an attacker to trigger the CVE-2022-4262 vulnerability?

An attacker must craft a malicious HTML page. When a user visits this page using a vulnerable version of Google Chrome, the exploit can be triggered, leading to heap corruption.

What is the significance of CVE-2022-4262 being listed on the CISA Known Exploited Vulnerabilities Catalog?

This listing indicates that the vulnerability has been actively exploited, posing a significant and urgent risk to organizations. It highlights the importance of immediate remediation, such as applying vendor-provided security updates.

What steps should organizations take to address the V8 engine vulnerability in Google Chrome?

Organizations should identify all Google Chrome assets that may be affected. It is crucial to reduce or isolate the risk, apply the vendor's fix, verify its successful implementation, and establish ongoing monitoring for any related security incidents.

References

Written by Nicholas Merritt

External-surface CVE analysis and Halo Surface Signal prioritization for Halo Threat Intelligence.