CVE-2021-28236 Explained : Impact and Mitigation

LibreDWG v0.12.3 was discovered to contain a NULL pointer dereference via out_dxfb.c.

Understanding CVE-2021-28236

This CVE details a vulnerability in LibreDWG v0.12.3 that allows for a NULL pointer dereference via out_dxfb.c.

What is CVE-2021-28236?

CVE-2021-28236 refers to a specific vulnerability found in LibreDWG v0.12.3 that enables a NULL pointer dereference through the out_dxfb.c file.

The Impact of CVE-2021-28236

This vulnerability could potentially be exploited by attackers to cause a denial of service or execute arbitrary code on affected systems.

Technical Details of CVE-2021-28236

This section outlines the technical aspects of the CVE.

Vulnerability Description

The vulnerability in LibreDWG v0.12.3 allows for a NULL pointer dereference via the out_dxfb.c file.

Affected Systems and Versions

All versions of LibreDWG v0.12.3 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability to trigger a NULL pointer dereference, potentially leading to a denial of service or arbitrary code execution.

Mitigation and Prevention

Protecting systems from CVE-2021-28236 is crucial to maintaining security.

Immediate Steps to Take

It is recommended to update LibreDWG to a patched version or apply relevant security updates to mitigate the risk.

Long-Term Security Practices

Regularly monitor security advisories and update systems promptly to defend against known vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by LibreDWG to address CVE-2021-28236 and other potential threats.