CVE-2021-33796 Explained : Impact and Mitigation

A detailed analysis of CVE-2021-33796 highlighting the vulnerability, impact, technical details, and mitigation steps.

Understanding CVE-2021-33796

This section provides insights into the CVE-2021-33796 vulnerability affecting MuJS.

What is CVE-2021-33796?

The CVE-2021-33796 vulnerability is identified in MuJS versions prior to 1.1.2, leading to a use-after-free flaw in the regexp source property access, potentially resulting in denial of service.

The Impact of CVE-2021-33796

The vulnerability poses a critical threat with a CVSS base score of 10. It may allow attackers to cause a denial of service, compromising confidentiality, integrity, and availability.

Technical Details of CVE-2021-33796

Explore the specific technical information related to CVE-2021-33796 to gain a better understanding of the vulnerability.

Vulnerability Description

In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.

Affected Systems and Versions

MuJS version 1.1.1 is affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited through network access with low attack complexity and no privileged requirements, making it critical.

Mitigation and Prevention

Discover effective steps to mitigate the CVE-2021-33796 vulnerability and safeguard your systems.

Immediate Steps to Take

To mitigate the risk, users should update MuJS to version 1.1.2 or later and monitor for any unusual activities.

Long-Term Security Practices

Implement robust security practices such as regular software updates, network monitoring, and access control policies.

Patching and Updates

Stay informed about security patches and updates released by MuJS to address vulnerabilities and enhance system security.