CVE-2020-16306 Explained : Impact and Mitigation

A null pointer dereference vulnerability in devices/gdevtsep.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted postscript file. This is fixed in v9.51.

Understanding CVE-2020-16306

This CVE entry describes a specific vulnerability in Artifex Software GhostScript version 9.50.

What is CVE-2020-16306?

The CVE-2020-16306 vulnerability is a null pointer dereference issue in devices/gdevtsep.c of GhostScript v9.50, which could be exploited by a remote attacker to trigger a denial of service by using a maliciously crafted postscript file.

The Impact of CVE-2020-16306

The vulnerability could lead to a denial of service condition, potentially disrupting the normal operation of the affected system running the vulnerable GhostScript version.

Technical Details of CVE-2020-16306

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The vulnerability is due to a null pointer dereference in devices/gdevtsep.c of GhostScript v9.50.

Affected Systems and Versions

Product: Artifex Software GhostScript
Version: 9.50
Status: Affected

Exploitation Mechanism

The vulnerability can be exploited remotely by sending a specially crafted postscript file to the target system running GhostScript v9.50.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update GhostScript to version 9.51, where the vulnerability has been fixed.
Monitor for any unusual postscript file activities on the network.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network security measures to detect and block malicious activities.

Patching and Updates

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