CVE-2020-14397 : Vulnerability Insights and Analysis

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.

Understanding CVE-2020-14397

What is CVE-2020-14397?

CVE-2020-14397 is a vulnerability found in LibVNCServer before version 0.9.13, specifically in the rfbregion.c file, leading to a NULL pointer dereference.

The Impact of CVE-2020-14397

This vulnerability could be exploited by an attacker to cause a denial of service (DoS) or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2020-14397

Vulnerability Description

The issue in LibVNCServer before 0.9.13 is due to a NULL pointer dereference in the rfbregion.c file, which can be triggered by a malicious actor.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions affected: N/A

Exploitation Mechanism

The vulnerability can be exploited by an attacker to trigger the NULL pointer dereference, potentially leading to a DoS condition or arbitrary code execution.

Mitigation and Prevention

Immediate Steps to Take

Update LibVNCServer to version 0.9.13 or later to mitigate the vulnerability.
Monitor vendor security advisories for patches and updates.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Apply patches and updates provided by LibVNCServer promptly to address the vulnerability.