CVE-2019-20009 : Exploit Details and Defense Strategies
Discover the impact of CVE-2019-20009, a vulnerability in GNU LibreDWG versions before 0.93. Learn about the exploitation mechanism, affected systems, and mitigation steps to secure your systems.
A vulnerability has been identified in GNU LibreDWG versions prior to 0.93. Crafted input can result in an excessive memory allocation attempt in the dwg_decode_SPLINE_private function within dwg.spec.
Understanding CVE-2019-20009
An issue was discovered in GNU LibreDWG before 0.93. Crafted input will lead to an attempted excessive memory allocation in dwg_decode_SPLINE_private in dwg.spec.
What is CVE-2019-20009?
CVE-2019-20009 is a vulnerability found in GNU LibreDWG versions before 0.93. It allows attackers to trigger an excessive memory allocation by providing specially crafted input to the dwg_decode_SPLINE_private function within dwg.spec.
The Impact of CVE-2019-20009
This vulnerability can be exploited by malicious actors to cause a denial of service (DoS) condition on systems running affected versions of GNU LibreDWG. By triggering excessive memory allocation, an attacker can potentially crash the application or consume system resources, leading to service disruption.
Technical Details of CVE-2019-20009
Vulnerability Description
Crafted input in GNU LibreDWG versions before 0.93 can lead to an excessive memory allocation attempt in the dwg_decode_SPLINE_private function within dwg.spec.
Affected Systems and Versions
- Affected Version: GNU LibreDWG versions prior to 0.93
Exploitation Mechanism
The vulnerability can be exploited by providing specially crafted input to the dwg_decode_SPLINE_private function within dwg.spec, triggering an excessive memory allocation attempt.
Mitigation and Prevention
Immediate Steps to Take
- Update to version 0.93 or later of GNU LibreDWG to mitigate the vulnerability.
- Monitor vendor advisories and apply patches promptly.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement input validation mechanisms to prevent crafted input exploitation.
Patching and Updates
- Apply patches provided by the vendor to address the vulnerability in GNU LibreDWG versions prior to 0.93.