CVE-2020-21817 : Vulnerability Insights and Analysis
Learn about CVE-2020-21817, a null pointer dereference issue in GNU LibreDWG 0.10.2641 causing a denial of service. Find out the impact, affected systems, exploitation, and mitigation steps.
A null pointer dereference issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:29, causing a denial of service (application crash).
Understanding CVE-2020-21817
This CVE involves a null pointer dereference vulnerability in GNU LibreDWG 0.10.2641.
What is CVE-2020-21817?
The vulnerability in GNU LibreDWG 0.10.2641 allows attackers to trigger a denial of service by exploiting a null pointer dereference issue.
The Impact of CVE-2020-21817
The vulnerability can lead to a denial of service, resulting in the application crashing and potentially disrupting normal operations.
Technical Details of CVE-2020-21817
This section provides more technical insights into the CVE.
Vulnerability Description
The issue arises from a null pointer dereference in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:29.
Affected Systems and Versions
- Product: GNU LibreDWG
- Version: 0.10.2641
- Status: Affected
Exploitation Mechanism
Attackers can exploit this vulnerability to crash the application, leading to a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2020-21817 is crucial to maintaining security.
Immediate Steps to Take
- Apply patches or updates provided by the vendor promptly.
- Monitor security advisories for any new information or patches related to this vulnerability.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify and address vulnerabilities proactively.
- Implement strong coding practices to prevent null pointer dereference issues.
Patching and Updates
- Ensure that the affected version of GNU LibreDWG is updated to a secure version that addresses the null pointer dereference vulnerability.