External risk intelligence

Chrome V8 Heap Corruption Vulnerability

CVE advisoryKnown Exploit

CVE-2024-7965

A flaw in the V8 engine within Google Chrome allows remote attackers to exploit heap corruption via a crafted HTML page. This could affect organizations by potentially compromising systems and data accessed through the vulnerable browser, leading to data integrity issues and system disruption.

4Halo Surface Signal

Out-of-bounds Write

Google Chrome

before 128.0.6613.84before 128.0.2739.42

External exposure likelihood

Halo Surface Signal score for CVE-2024-7965

The vulnerability affects web browsers, which are client-side software designed to navigate the public internet and render content from remote sources. Its primary function is direct interaction with external sites, making the attack surface readily reachable through standard web browsing activity.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Horizon Alert

Summary of the vulnerability and why it matters

The V8 engine within Google Chrome has an implementation flaw that could allow a remote attacker to cause heap corruption. This is possible by presenting a specially crafted HTML page to the affected system. This type of corruption can lead to significant disruption and data integrity issues within the affected applications.

  • Vulnerable component: V8 engine in browsers
  • Core weakness: Heap corruption flaw
  • Main business impact: Disruption and data issues

Attack Path

How an attacker could exploit the issue

This vulnerability in V8, the JavaScript engine used in Google Chrome and Microsoft Edge, allows attackers to corrupt memory. The attack occurs when a user visits a malicious webpage. This memory corruption can lead to attackers gaining control over the affected system, potentially impacting data confidentiality, integrity, and system availability.

  • An attacker hosts a malicious website.
  • A user visits the malicious website.
  • The website triggers a heap corruption.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in the V8 JavaScript engine within Google Chrome and Microsoft Edge could allow attackers to corrupt memory by presenting a specially crafted HTML page. Successful exploitation could lead to unauthorized access and modification of data, impacting the confidentiality, integrity, and availability of systems. Given the potential for significant damage and the ease of access, this situation warrants prompt attention.

  • Attackers with low technical skill.
  • Remote access via a malicious webpage.
  • High business risk; urgent attention needed.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability allows for remote attackers to potentially exploit heap corruption through a crafted HTML page. This could impact affected organizations by potentially compromising systems and data accessed through the vulnerable browser. Understanding the scope of affected assets is the first step in mitigating risk.

  • Identify all systems using the affected browser.
  • Reduce exposure by limiting web browsing activities.
  • Apply vendor updates and verify fixes.
  • Monitor for related security incidents.

Frequently asked questions

What is the V8 engine in Google Chrome and what is it used for?

The V8 engine is the JavaScript engine within Google Chrome and Microsoft Edge. It's responsible for executing JavaScript code, which is essential for making websites interactive and dynamic. People use browsers with V8 to access the internet, run web applications, and view multimedia content.

How does the CVE-2024-7965 vulnerability work?

This vulnerability is an inappropriate implementation in the V8 engine, classified as heap corruption (CWE-787). It means that when the engine processes a specially crafted HTML page, it can lead to corruption in the program's memory, potentially allowing an attacker to manipulate program behavior.

What are the conditions needed for an attacker to trigger this vulnerability?

An attacker needs to present a user with a crafted HTML page. The vulnerability is triggered when a user visits this malicious page using an affected browser. It does not trigger if the user does not interact with the malicious page.

Who should be concerned about this threat based on its exposure?

Anyone using affected versions of Google Chrome or Microsoft Edge should be concerned. Since browsers are used to access the internet, this vulnerability has an external exposure, meaning it can be reached by attackers over the internet through a malicious website.

What is the first step to address this vulnerability?

The initial step is to identify all systems running the affected versions of Google Chrome or Microsoft Edge. Subsequently, applying vendor-provided updates is crucial to remediate the vulnerability.

References

Sources and related resources

Primary sources: NVD, CVE.org, CISA KEV.

NVDPublished Modified