CVE-2022-2085 : What You Need to Know

A NULL pointer dereference vulnerability was found in Ghostscript, allowing an attacker to trigger a crash by parsing a large number of bits in memory.

Understanding CVE-2022-2085

This section provides insights into the nature of the vulnerability and its impact.

What is CVE-2022-2085?

CVE-2022-2085 is a NULL pointer dereference vulnerability in Ghostscript, triggered when rendering a large number of bits per pixel, leading to a crash.

The Impact of CVE-2022-2085

The vulnerability could be exploited by an attacker to crash the application by parsing an excess of 64 bits per pixel.

Technical Details of CVE-2022-2085

Explore the specifics of the vulnerability's description, affected systems, and the exploitation mechanism.

Vulnerability Description

When Ghostscript allocates a buffer device, it relies on an uninitialized init_device_procs for high bits per pixel, causing a NULL pointer dereference.

Affected Systems and Versions

The vulnerability affects Ghostscript version 9.55.0, potentially impacting systems relying on this version.

Exploitation Mechanism

By parsing more than 64 bits per pixel, an attacker can exploit the flaw to trigger a NULL pointer dereference, crashing the application.

Mitigation and Prevention

Discover the immediate steps to take and long-term security practices to mitigate the risks associated with CVE-2022-2085.

Immediate Steps to Take

Ensure timely patching and follow necessary security protocols to prevent exploitation of the vulnerability.

Long-Term Security Practices

Implement robust security measures and stay updated on patches and security advisories to safeguard systems from potential exploitation.

Patching and Updates

Regularly update Ghostscript to patched versions that address the NULL pointer dereference vulnerability to enhance system security.