CVE-2019-9773 : Security Advisory and Response

A vulnerability has been found in versions 0.7 and 0.7.1645 of GNU LibreDWG, affecting the function dwg_decode_eed_data in decode.c due to a heap-based buffer overflow issue related to the z dimension.

Understanding CVE-2019-9773

This CVE entry pertains to a specific vulnerability found in GNU LibreDWG.

What is CVE-2019-9773?

CVE-2019-9773 is a heap-based buffer overflow vulnerability in versions 0.7 and 0.7.1645 of GNU LibreDWG, specifically in the dwg_decode_eed_data function in decode.c.

The Impact of CVE-2019-9773

The vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the heap-based buffer overflow issue.

Technical Details of CVE-2019-9773

This section provides more technical insights into the CVE.

Vulnerability Description

The issue in GNU LibreDWG 0.7 and 0.7.1645 involves a heap-based buffer overflow in the dwg_decode_eed_data function in decode.c, specifically related to the z dimension.

Affected Systems and Versions

Versions 0.7 and 0.7.1645 of GNU LibreDWG

Exploitation Mechanism

The vulnerability can be exploited by an attacker to trigger the heap-based buffer overflow, potentially leading to arbitrary code execution or denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-9773 requires specific actions to mitigate the risks.

Immediate Steps to Take

Apply patches provided by the vendor promptly
Monitor security advisories for updates
Implement network security measures to prevent unauthorized access

Long-Term Security Practices

Regularly update software and libraries
Conduct security audits and code reviews
Educate users and developers on secure coding practices

Patching and Updates

Ensure all affected systems are updated with the latest patches
Regularly check for security updates and apply them promptly