CVE-2021-30602 : Vulnerability Insights and Analysis
Stay protected from CVE-2021-30602, a critical use-after-free vulnerability in Google Chrome. Learn about the impact, affected versions, and mitigation steps.
A detailed overview of CVE-2021-30602, a vulnerability in Google Chrome that could allow an attacker to exploit heap corruption via a crafted HTML page.
Understanding CVE-2021-30602
This section will cover what CVE-2021-30602 is and the impact it has.
What is CVE-2021-30602?
The CVE-2021-30602 vulnerability involves a use-after-free issue in WebRTC in Google Chrome versions prior to 92.0.4515.159. This could be exploited by an attacker to potentially corrupt the heap by convincing a user to visit a malicious website.
The Impact of CVE-2021-30602
The impact of this vulnerability is severe as it could allow threat actors to execute arbitrary code on the victim's system, leading to potential data theft, system compromise, and unauthorized access.
Technical Details of CVE-2021-30602
In this section, we will delve into the technical aspects of CVE-2021-30602.
Vulnerability Description
The vulnerability is classified as a use-after-free issue, which occurs when a program continues to reference a memory address after it has been freed, potentially leading to memory corruption.
Affected Systems and Versions
Google Chrome versions prior to 92.0.4515.159 are affected by this vulnerability. Users with outdated versions are at risk of exploitation.
Exploitation Mechanism
An attacker can exploit this vulnerability by persuading a user to visit a specially crafted HTML page on Google Chrome, triggering the use-after-free issue in WebRTC.
Mitigation and Prevention
This section will discuss the steps to mitigate and prevent exploitation of CVE-2021-30602.
Immediate Steps to Take
Users are advised to update Google Chrome to version 92.0.4515.159 or newer to patch the vulnerability. Additionally, exercising caution when browsing unfamiliar websites can reduce the risk of exploitation.
Long-Term Security Practices
Regularly updating browsers and systems, practicing safe browsing habits, and being cautious of unsolicited links or downloads can enhance overall cybersecurity posture.
Patching and Updates
Google has released patches addressing CVE-2021-30602 in newer Chrome versions. Users should apply these updates promptly to safeguard their systems.