CVE-2021-40403 : Security Advisory and Response

This CVE record relates to an information disclosure vulnerability in Gerbv versions 2.7.0, 2.8.0, and dev (commit b5f1eacd), where a specially crafted file can leak memory contents.

Understanding CVE-2021-40403

This section will provide an overview of the CVE-2021-40403 vulnerability.

What is CVE-2021-40403?

An information disclosure vulnerability in Gerbv software versions allows an attacker to leak memory contents by exploiting an issue in pick-and-place rotation parsing.

The Impact of CVE-2021-40403

The CVSS v3.0 base score for this vulnerability is 5.8, indicating a medium severity issue with low confidentiality impact.

Technical Details of CVE-2021-40403

Explore the technical aspects of CVE-2021-40403 for a deeper understanding.

Vulnerability Description

The vulnerability arises due to missing initialization of a structure in the pick-and-place rotation parsing functionality of Gerbv, allowing memory content leakage.

Affected Systems and Versions

Vendor: n/a
Product: Gerbv
Versions Affected: Gerbv 2.7.0, Gerbv 2.8.0, Gerbv dev (commit b5f1eacd)

Exploitation Mechanism

An attacker can craft a malicious pick-and-place file to trigger the vulnerability and leak memory contents.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-40403.

Immediate Steps to Take

Update Gerbv to a patched version if available
Avoid opening or processing untrusted pick-and-place files

Long-Term Security Practices

Regularly update software and apply security patches
Conduct security assessments and audits to identify vulnerabilities

Patching and Updates

Stay informed about security updates and patches released by Gerbv to address CVE-2021-40403.