CVE-2021-38297 : Vulnerability Insights and Analysis

A Buffer Overflow vulnerability has been identified in Go versions before 1.16.9 and 1.17.x before 1.17.2, specifically when large arguments are used in a function invocation from a WASM module with GOARCH=wasm and GOOS=js parameters.

Understanding CVE-2021-38297

This security flaw allows for Buffer Overflow via large arguments, posing a risk to systems using the mentioned Go versions.

What is CVE-2021-38297?

The CVE-2021-38297 vulnerability resides in Go versions before 1.16.9 and 1.17.x before 1.17.2, triggered by specific function invocations.

The Impact of CVE-2021-38297

Exploitation of this vulnerability could allow attackers to execute arbitrary code or crash the application, leading to a Denial of Service (DoS) condition.

Technical Details of CVE-2021-38297

The following are key technical details associated with CVE-2021-38297:

Vulnerability Description

The Buffer Overflow occurs when large arguments are passed to a function invocation within a WASM module.

Affected Systems and Versions

All Go versions prior to 1.16.9 and 1.17.x before 1.17.2 are impacted by this vulnerability.

Exploitation Mechanism

Exploitation of this vulnerability requires the use of specific parameters (GOARCH=wasm GOOS=js) during function invocation from a WASM module.

Mitigation and Prevention

To address CVE-2021-38297, consider the following mitigation strategies:

Immediate Steps to Take

Update Go to version 1.16.9 or 1.17.2 to patch the Buffer Overflow vulnerability.
Monitor official security advisories for any related updates or patches.

Long-Term Security Practices

Regularly update software components to the latest secure versions.
Implement strong input validation mechanisms to prevent buffer overflows.

Patching and Updates

Apply the patches provided by the Go project to fix the vulnerability and enhance system security.