CVE-2019-20013 : Security Advisory and Response

A vulnerability has been found in GNU LibreDWG versions prior to 0.93. Specially crafted input may result in an attempt to allocate an excessive amount of memory in the decode_3dsolid function within the dwg.spec file.

Understanding CVE-2019-20013

This CVE entry describes a vulnerability in GNU LibreDWG that could allow an attacker to trigger excessive memory allocation.

What is CVE-2019-20013?

CVE-2019-20013 is a security vulnerability found in GNU LibreDWG versions before 0.93. By providing specially crafted input, an attacker could exploit the decode_3dsolid function within the dwg.spec file to trigger an attempt to allocate an excessive amount of memory.

The Impact of CVE-2019-20013

The vulnerability could be exploited by an attacker to cause a denial of service (DoS) condition on the affected system. This could potentially lead to system instability or crashes.

Technical Details of CVE-2019-20013

This section provides more technical insights into the CVE.

Vulnerability Description

The issue in GNU LibreDWG before version 0.93 allows crafted input to trigger an attempt to allocate excessive memory in the decode_3dsolid function within the dwg.spec file.

Affected Systems and Versions

Affected Version: Versions prior to 0.93
Systems: GNU LibreDWG

Exploitation Mechanism

The vulnerability can be exploited by providing specially crafted input to the decode_3dsolid function within the dwg.spec file, leading to the attempted excessive memory allocation.

Mitigation and Prevention

Protecting systems from CVE-2019-20013 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update to version 0.93 or later of GNU LibreDWG to mitigate the vulnerability.
Monitor for any unusual memory allocation patterns that could indicate exploitation.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to patch known vulnerabilities.
Implement input validation mechanisms to prevent malicious inputs.

Patching and Updates

Apply patches provided by the software vendor promptly to address security issues.