CVE-2018-19477 : Vulnerability Insights and Analysis
Learn about CVE-2018-19477, a type confusion vulnerability in Artifex Ghostscript versions before 9.26, allowing remote attackers to bypass access restrictions and gain unauthorized access.
A type confusion vulnerability in the JBIG2Decode feature of Artifex Ghostscript versions prior to 9.26 allows remote attackers to bypass access restrictions by exploiting the vulnerability in psi/zfjbig2.c.
Understanding CVE-2018-19477
What is CVE-2018-19477?
This CVE refers to a type confusion vulnerability in Artifex Ghostscript versions before 9.26, enabling attackers to circumvent intended access restrictions.
The Impact of CVE-2018-19477
The vulnerability allows remote attackers to bypass access restrictions, potentially leading to unauthorized access and exploitation of affected systems.
Technical Details of CVE-2018-19477
Vulnerability Description
The issue lies in psi/zfjbig2.c in Artifex Ghostscript before version 9.26, enabling attackers to exploit a JBIG2Decode type confusion.
Affected Systems and Versions
- Product: Artifex Ghostscript
- Vendor: Artifex
- Versions affected: Prior to 9.26
Exploitation Mechanism
Attackers can exploit this vulnerability remotely to bypass access restrictions and potentially gain unauthorized access to systems.
Mitigation and Prevention
Immediate Steps to Take
- Update Artifex Ghostscript to version 9.26 or later to mitigate the vulnerability.
- Monitor vendor advisories and apply patches promptly.
Long-Term Security Practices
- Regularly update software and systems to the latest versions.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
- Apply security patches provided by Artifex promptly to address the vulnerability.