CVE-2020-1939 : Exploit Details and Defense Strategies

The Apache NuttX (Incubating) project has a vulnerability that affects versions 6.15 to 8.2 due to a NULL pointer dereference bug in the optional "apps" repository component.

Understanding CVE-2020-1939

Apache NuttX (Incubating) is impacted by a NULL pointer dereference bug in the ftpd component within the optional "apps" repository.

What is CVE-2020-1939?

The vulnerability lies in the ftpd component of the optional "apps" repository, affecting versions 6.15 to 8.2 of Apache NuttX (Incubating). The NuttX RTOS itself is not affected.

The Impact of CVE-2020-1939

Users who have enabled ftpd from the optional apps repository are vulnerable to a NULL pointer dereference bug in Apache NuttX (Incubating) versions 6.15 to 8.2.

Technical Details of CVE-2020-1939

The technical aspects of the CVE.

Vulnerability Description

The issue stems from a NULL pointer dereference bug in the ftpd component of the optional "apps" repository in Apache NuttX (Incubating).

Affected Systems and Versions

Product: Apache NuttX (Incubating)
Versions: Apache NuttX (Incubating) 6.15 to 8.2

Exploitation Mechanism

Users of the optional "apps" repository are affected only if they have enabled ftpd.

Mitigation and Prevention

Steps to address the CVE.

Immediate Steps to Take

Disable or remove the ftpd component from the optional "apps" repository if not essential.
Keep software and applications updated.

Long-Term Security Practices

Regularly review and update configurations for enhanced security.
Implement the principle of least privilege to limit exposure to vulnerabilities.

Patching and Updates

Check for patches or updates provided by Apache NuttX (Incubating) to address the NULL pointer dereference bug.