CVE-2020-21818 : Security Advisory and Response
Learn about CVE-2020-21818, a heap-based buffer overflow vulnerability in GNU LibreDWG 0.10.2641, allowing attackers to execute arbitrary code or cause a denial of service.
A heap-based buffer overflow vulnerability in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:48.
Understanding CVE-2020-21818
A heap-based buffer overflow vulnerability in GNU LibreDWG 0.10.2641.
What is CVE-2020-21818?
This CVE identifies a heap-based buffer overflow vulnerability in GNU LibreDWG 0.10.2641 through a specific code path.
The Impact of CVE-2020-21818
The vulnerability could allow an attacker to execute arbitrary code or crash the application, potentially leading to a denial of service (DoS) condition.
Technical Details of CVE-2020-21818
A heap-based buffer overflow vulnerability in GNU LibreDWG 0.10.2641.
Vulnerability Description
The vulnerability exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:48, potentially leading to code execution or application crashes.
Affected Systems and Versions
- Affected Version: GNU LibreDWG 0.10.2641
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious input that triggers the buffer overflow, leading to potential code execution.
Mitigation and Prevention
Steps to address and prevent the CVE-2020-21818 vulnerability.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Implement proper input validation to prevent buffer overflows.
- Monitor for any unusual activities on the system.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Conduct security assessments and penetration testing to identify vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches released by GNU LibreDWG.