CVE-2021-41772 : Vulnerability Insights and Analysis

CVE-2021-41772 is a vulnerability in Go versions before 1.16.10 and 1.17.x before 1.17.3 that allows a panic in archive/zip Reader.Open when processing a malformed ZIP archive with an invalid name or an empty filename field.

Understanding CVE-2021-41772

This section will provide insights into the nature and impact of CVE-2021-41772.

What is CVE-2021-41772?

CVE-2021-41772 is a vulnerability in Go programming language versions that could lead to a panic condition when dealing with specific malformed ZIP archives.

The Impact of CVE-2021-41772

The vulnerability can be exploited to trigger a panic condition, potentially leading to denial of service (DoS) or unexpected behaviors in applications using affected Go versions.

Technical Details of CVE-2021-41772

Explore the technical aspects and specifics of CVE-2021-41772.

Vulnerability Description

The issue arises from the mishandling of ZIP archives in certain Go versions, causing a panic when encountering particular malformed archive structures.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: Go versions before 1.16.10 and 1.17.x before 1.17.3

Exploitation Mechanism

An attacker can create a specially crafted ZIP file with an invalid name or empty filename, triggering the panic condition in applications using the affected Go versions.

Mitigation and Prevention

Learn about the steps to mitigate and prevent the exploitation of CVE-2021-41772.

Immediate Steps to Take

Update Go to version 1.16.10 or 1.17.3 to patch the vulnerability.
Be cautious when handling ZIP files from untrusted sources.

Long-Term Security Practices

Regularly update software dependencies to include security patches.
Follow secure coding practices to handle user input and file processing securely.

Patching and Updates

Ensure timely application of Go updates to stay protected against known vulnerabilities.