CVE-2019-17545 : What You Need to Know

GDAL through version 3.0.1 is affected by a double free issue in the OGRExpatRealloc function, leading to a vulnerability when exceeding the 10MB limit.

Understanding CVE-2019-17545

In this CVE, GDAL experiences a specific issue that can have security implications.

What is CVE-2019-17545?

CVE-2019-17545 is a vulnerability in GDAL versions up to 3.0.1 that triggers a double free problem in the OGRExpatRealloc function.

The Impact of CVE-2019-17545

The vulnerability can be exploited when the 10MB threshold is surpassed, potentially leading to security breaches and system compromise.

Technical Details of CVE-2019-17545

This section delves into the technical aspects of the CVE.

Vulnerability Description

GDAL through version 3.0.1 encounters a double free issue in the OGRExpatRealloc function in ogr/ogr_expat.cpp.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions: Up to 3.0.1

Exploitation Mechanism

The vulnerability arises when the 10MB limit is exceeded, triggering the poolDestroy function and resulting in the double free issue.

Mitigation and Prevention

Protective measures to address CVE-2019-17545.

Immediate Steps to Take

Apply security updates promptly to mitigate the vulnerability.
Monitor vendor advisories for patches and guidance.
Implement access controls and network segmentation to limit exposure.

Long-Term Security Practices

Regularly update software and dependencies to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify weaknesses.
Educate users on secure coding practices and awareness of potential threats.

Patching and Updates

Install the latest GDAL security updates to address the double free issue and enhance system security.