CVE-2019-9144 : Exploit Details and Defense Strategies

Exiv2 version 0.27 contains a vulnerability that leads to infinite recursion in the BigTiffImage::printIFD function, potentially resulting in a Denial of Service (Segmentation fault) or other impacts when triggered by a crafted file.

Understanding CVE-2019-9144

This CVE entry highlights a specific vulnerability in Exiv2 version 0.27 that can be exploited to cause a Denial of Service or other unspecified impacts.

What is CVE-2019-9144?

CVE-2019-9144 is a vulnerability in Exiv2 version 0.27 that allows for infinite recursion in the BigTiffImage::printIFD function, triggered by a specially crafted file.

The Impact of CVE-2019-9144

The exploitation of this vulnerability can lead to a Denial of Service (Segmentation fault) or potentially have other unspecified impacts on the affected system.

Technical Details of CVE-2019-9144

Exiv2 version 0.27 vulnerability details and affected systems.

Vulnerability Description

The vulnerability in Exiv2 version 0.27 triggers infinite recursion in the BigTiffImage::printIFD function, which can be exploited by a specifically crafted file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by using a specially crafted file to trigger the infinite recursion in the BigTiffImage::printIFD function.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2019-9144 vulnerability.

Immediate Steps to Take

Update Exiv2 to a non-vulnerable version if available.
Avoid opening untrusted or suspicious files.
Implement file type and content validation mechanisms.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Conduct security audits and code reviews to identify and address potential issues.

Patching and Updates

Monitor official Exiv2 sources for patches or updates addressing this vulnerability.