CVE-2021-46055 : What You Need to Know

A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*).

Understanding CVE-2021-46055

This CVE details a Denial of Service vulnerability in Binaryen 104.

What is CVE-2021-46055?

The vulnerability is caused by an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*), leading to a Denial of Service threat.

The Impact of CVE-2021-46055

The vulnerability allows attackers to trigger a denial of service condition by exploiting this issue.

Technical Details of CVE-2021-46055

This section covers the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Binaryen 104 results from an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*), creating a potential Denial of Service exploit.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by malicious actors initiating specific actions that trigger the assertion abort in the mentioned function.

Mitigation and Prevention

Protecting against CVE-2021-46055 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Binaryen 104 to the latest version to mitigate the vulnerability.
Implement network level protections to detect and block malicious attempts exploiting the vulnerability.

Long-Term Security Practices

Regularly monitor security mailing lists and official sources for updates on vulnerabilities in Binaryen.
Conduct security audits and code reviews to identify and address vulnerabilities proactively.

Patching and Updates

Apply patches and updates provided by Binaryen promptly to address security issues and improve system security.