CVE-2019-15758 : Security Advisory and Response

A vulnerability has been identified in Binaryen 1.38.32 that could lead to a denial-of-service attack due to missing validation rules.

Understanding CVE-2019-15758

This CVE involves a vulnerability in Binaryen 1.38.32 that could be exploited to cause a denial-of-service attack.

What is CVE-2019-15758?

Binaryen 1.38.32 is affected by a vulnerability where the absence of validation rules in asmjs/asmangle.cpp could result in an Assertion Failure at wasm/wasm.cpp in wasm::asmangle. This issue could allow an attacker to trigger a denial-of-service by providing a specially crafted input, as demonstrated by wasm2js.

The Impact of CVE-2019-15758

The vulnerability could be exploited by an attacker to cause a denial-of-service attack on systems running Binaryen 1.38.32.

Technical Details of CVE-2019-15758

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in Binaryen 1.38.32 arises from the lack of validation rules in asmjs/asmangle.cpp, leading to an Assertion Failure at wasm/wasm.cpp in wasm::asmangle.

Affected Systems and Versions

Product: Binaryen 1.38.32
Vendor: N/A
Version: N/A

Exploitation Mechanism

The vulnerability can be exploited by providing a specially crafted input, as demonstrated by wasm2js, to trigger a denial-of-service attack.

Mitigation and Prevention

Protecting systems from CVE-2019-15758 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by the vendor.
Implement input validation mechanisms to prevent crafted inputs.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Conduct security audits and code reviews to identify and address vulnerabilities.

Patching and Updates

Ensure that Binaryen 1.38.32 is updated with the latest patches and fixes to mitigate the vulnerability.