CVE-2020-16291 Explained : Impact and Mitigation
Learn about CVE-2020-16291, a buffer overflow vulnerability in Artifex Software GhostScript v9.50 allowing remote attackers to cause denial of service via a crafted PDF file. Find mitigation steps and prevention measures.
A buffer overflow vulnerability in contrib/gdevdj9.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file. This is fixed in v9.51.
Understanding CVE-2020-16291
A buffer overflow vulnerability in Artifex Software GhostScript v9.50 that allows a denial of service attack.
What is CVE-2020-16291?
The vulnerability in GhostScript v9.50 enables a remote attacker to trigger a denial of service by exploiting a buffer overflow issue in contrib/gdevdj9.c when processing a maliciously crafted PDF file.
The Impact of CVE-2020-16291
The vulnerability could lead to a denial of service condition, potentially disrupting the availability of the affected system or service.
Technical Details of CVE-2020-16291
Details about the vulnerability and its implications.
Vulnerability Description
The buffer overflow vulnerability in contrib/gdevdj9.c of GhostScript v9.50 allows remote attackers to exploit the system via a specially crafted PDF file, resulting in a denial of service.
Affected Systems and Versions
- Product: Artifex Software GhostScript
- Version: 9.50
Exploitation Mechanism
The vulnerability can be exploited remotely by sending a malicious PDF file to the target system, triggering the buffer overflow and causing a denial of service.
Mitigation and Prevention
Measures to address and prevent the CVE-2020-16291 vulnerability.
Immediate Steps to Take
- Update to version 9.51 of GhostScript to mitigate the vulnerability.
- Avoid opening PDF files from untrusted or unknown sources.
- Implement network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Conduct security assessments and audits to identify and address vulnerabilities.
- Educate users on safe browsing habits and potential risks associated with opening files from unknown sources.
Patching and Updates
Ensure that all systems running GhostScript are updated to version 9.51 or the latest available version to patch the vulnerability.