CVE-2019-20915 : What You Need to Know

GNU LibreDWG up to version 0.9.3 is affected by a vulnerability that can lead to a heap-based buffer over-read when manipulated input is provided to the function bit_write_TF in bits.c.

Understanding CVE-2019-20915

This CVE entry describes a specific issue in GNU LibreDWG software that could result in a memory reading vulnerability.

What is CVE-2019-20915?

The vulnerability in GNU LibreDWG up to version 0.9.3 allows for excessive memory reading from a heap-based buffer when certain input data is manipulated.

The Impact of CVE-2019-20915

Exploitation of this vulnerability could potentially lead to unauthorized access to sensitive information or a denial of service (DoS) condition.

Technical Details of CVE-2019-20915

This section provides more technical insights into the CVE-2019-20915 vulnerability.

Vulnerability Description

The issue in GNU LibreDWG up to version 0.9.3 involves a heap-based buffer over-read in the function bit_write_TF located in the file bits.c.

Affected Systems and Versions

Affected Software: GNU LibreDWG up to version 0.9.3
Versions: All versions up to 0.9.3

Exploitation Mechanism

By providing specifically crafted input data to the vulnerable function bit_write_TF, an attacker can trigger the heap-based buffer over-read.

Mitigation and Prevention

Protecting systems from CVE-2019-20915 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by the software vendor.
Monitor for any unusual activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and systems to ensure the latest security fixes are in place.
Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Check for patches or updates released by GNU LibreDWG to address the heap-based buffer over-read vulnerability.