CVE-2020-14373 : Security Advisory and Response

A use after free vulnerability was discovered in ghostscript-9.25, specifically in igc_reloc_struct_ptr() of psi/igc.c. This flaw could be exploited by a local attacker via a maliciously crafted PDF file to trigger a denial of service.

Understanding CVE-2020-14373

This CVE pertains to a use after free vulnerability in the Ghostscript software.

What is CVE-2020-14373?

CVE-2020-14373 is a vulnerability in ghostscript-9.25 that allows a local attacker to exploit a use after free issue in the software, potentially leading to a denial of service.

The Impact of CVE-2020-14373

The vulnerability could be exploited by an attacker to cause a denial of service on systems running the affected version of Ghostscript.

Technical Details of CVE-2020-14373

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability exists in igc_reloc_struct_ptr() of psi/igc.c in ghostscript-9.25, allowing a local attacker to exploit a use after free issue.

Affected Systems and Versions

Product: ghostscript
Version: 9.25

Exploitation Mechanism

An attacker can exploit this vulnerability by supplying a specially crafted PDF file.

Mitigation and Prevention

Protecting systems from CVE-2020-14373 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor for any unusual PDF file activities.
Restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Conduct security training for users to recognize and avoid malicious files.

Patching and Updates

Ensure that the affected software, in this case, ghostscript-9.25, is updated with the latest patches to mitigate the vulnerability.