CVE-2019-13504 : Exploit Details and Defense Strategies

Exiv2 version 0.27.2 contains a vulnerability in the mrwimage.cpp file, specifically in the Exiv2::MrwImage::readMetadata function, leading to an out-of-bounds read.

Understanding CVE-2019-13504

Exiv2 software vulnerability impacting the mrwimage.cpp file.

What is CVE-2019-13504?

CVE-2019-13504 is a vulnerability found in Exiv2 version 0.27.2, affecting the Exiv2::MrwImage::readMetadata function, resulting in an out-of-bounds read.

The Impact of CVE-2019-13504

The vulnerability could potentially allow attackers to read data outside the bounds of allocated memory, leading to information exposure or potential crashes.

Technical Details of CVE-2019-13504

Examination of the technical aspects of the CVE.

Vulnerability Description

The flaw exists in the mrwimage.cpp file within Exiv2, specifically in the readMetadata function, enabling unauthorized access to memory locations beyond the intended boundaries.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Version: n/a (affected)

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious MRW image file and tricking a user or system into processing it, leading to the out-of-bounds read.

Mitigation and Prevention

Measures to address and prevent the CVE-2019-13504 vulnerability.

Immediate Steps to Take

Update Exiv2 to a patched version that addresses the vulnerability.
Avoid opening MRW image files from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network and system monitoring to detect unusual behavior that may indicate exploitation.

Patching and Updates

Ensure timely installation of security updates and patches provided by Exiv2 to mitigate the CVE-2019-13504 vulnerability.