CVE-2019-20007 : Vulnerability Insights and Analysis

A vulnerability has been found in versions 0.8.2 through 0.8.6 of ezXML that can lead to a crash due to a NULL pointer dereference.

Understanding CVE-2019-20007

This CVE identifies a specific vulnerability in the ezXML library.

What is CVE-2019-20007?

CVE-2019-20007 is a vulnerability in ezXML versions 0.8.2 through 0.8.6 that can be exploited when parsing a manipulated XML file.

The Impact of CVE-2019-20007

The vulnerability triggers a zero-length reallocation in the ezxml_str2utf8 function, leading to a NULL pointer dereference and causing a crash in the form of a segmentation fault.

Technical Details of CVE-2019-20007

This section provides more technical insights into the CVE.

Vulnerability Description

The issue arises from the ezxml_str2utf8 function and the ezxml_parse_str function in the ezxml.c code.

Affected Systems and Versions

Versions 0.8.2 through 0.8.6 of ezXML are affected by this vulnerability.

Exploitation Mechanism

By manipulating an XML file, attackers can exploit the zero-length reallocation in ezxml_str2utf8, leading to a NULL pointer dereference.

Mitigation and Prevention

Protecting systems from CVE-2019-20007 is crucial.

Immediate Steps to Take

Update ezXML to a patched version if available.
Implement proper input validation to prevent malicious XML file parsing.

Long-Term Security Practices

Regularly update software libraries and dependencies.
Conduct security audits to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security patches and updates for ezXML to address CVE-2019-20007.