CVE-2020-16297 : Vulnerability Insights and Analysis
Learn about CVE-2020-16297, a buffer overflow vulnerability in GhostScript v9.50 allowing remote attackers to cause denial of service via a crafted PDF file. Find mitigation steps and preventive measures.
A buffer overflow vulnerability in FloydSteinbergDitheringC() in contrib/gdevbjca.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-2020-16297
This CVE involves a buffer overflow vulnerability in GhostScript v9.50 that could be exploited by a remote attacker to trigger a denial of service attack.
What is CVE-2020-16297?
The vulnerability in FloydSteinbergDitheringC() in GhostScript v9.50 enables an attacker to disrupt services by utilizing a maliciously crafted PDF file.
The Impact of CVE-2020-16297
The exploitation of this vulnerability could lead to a denial of service condition, potentially disrupting the availability of services relying on the affected GhostScript version.
Technical Details of CVE-2020-16297
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The buffer overflow vulnerability in FloydSteinbergDitheringC() in contrib/gdevbjca.c of GhostScript v9.50 allows attackers to execute a denial of service attack through a specifically crafted PDF file.
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
Protecting systems from CVE-2020-16297 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Update GhostScript to version 9.51 or later to mitigate the vulnerability.
- Avoid opening PDF files from untrusted or unknown sources.
- Implement network security measures to prevent unauthorized access to vulnerable systems.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
- Apply patches and updates provided by Artifex Software to ensure the security of GhostScript installations.