CVE-2020-16305 : What You Need to Know

A buffer overflow vulnerability in pcx_write_rle() in Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file.

Understanding CVE-2020-16305

This CVE involves a buffer overflow vulnerability in GhostScript v9.50 that can be exploited by a remote attacker to trigger a denial of service attack.

What is CVE-2020-16305?

The vulnerability in pcx_write_rle() in GhostScript v9.50 enables a remote attacker to disrupt services by utilizing a maliciously crafted PDF file. The issue was addressed in version 9.51.

The Impact of CVE-2020-16305

The vulnerability could lead to a denial of service attack, potentially causing system instability or unavailability.

Technical Details of CVE-2020-16305

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The buffer overflow vulnerability in pcx_write_rle() in GhostScript v9.50 allows attackers to exploit a crafted PDF file to disrupt services.

Affected Systems and Versions

Affected System: Artifex Software GhostScript v9.50
Fixed Version: v9.51

Exploitation Mechanism

Attackers can exploit the vulnerability by sending a specially crafted PDF file to the target system, triggering the buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2020-16305 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update GhostScript to version 9.51 to mitigate the vulnerability.
Avoid opening PDF files from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing.

Patching and Updates

Ensure that all software, including GhostScript, is regularly updated to the latest versions to address known vulnerabilities.