CVE-2019-20011 Explained : Impact and Mitigation

A heap-based buffer over-read vulnerability was discovered in GNU LibreDWG 0.92, specifically in the decode_R13_R2000 function in the decode.c file.

Understanding CVE-2019-20011

This CVE entry describes a security issue in GNU LibreDWG 0.92 that could potentially lead to a heap-based buffer over-read.

What is CVE-2019-20011?

This CVE identifies a vulnerability in the decode_R13_R2000 function within the decode.c file of GNU LibreDWG 0.92. The issue allows for a heap-based buffer over-read, which could be exploited by attackers.

The Impact of CVE-2019-20011

The vulnerability could be exploited by malicious actors to read sensitive information from the affected system's memory, potentially leading to a breach of confidentiality or further system compromise.

Technical Details of CVE-2019-20011

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The problem lies in the decode_R13_R2000 function in the decode.c file of GNU LibreDWG 0.92, resulting in a heap-based buffer over-read.

Affected Systems and Versions

Affected Version: GNU LibreDWG 0.92
Specific Product and Vendor: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability to read beyond the allocated memory space, potentially accessing sensitive data or causing a denial of service.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Apply the latest security patches provided by the vendor.
Monitor security advisories for any updates related to this CVE.

Long-Term Security Practices

Regularly update software and libraries to mitigate known vulnerabilities.
Implement strong access controls and network segmentation to limit the impact of potential breaches.

Patching and Updates

Ensure that GNU LibreDWG is updated to a patched version that addresses the heap-based buffer over-read vulnerability.