CVE-2019-20005 : What You Need to Know
Discover the impact of CVE-2019-20005 in ezXML versions 0.8.3 through 0.8.6. Learn about the heap-based buffer over-read vulnerability and how to mitigate the risk.
A vulnerability was found in versions 0.8.3 through 0.8.6 of ezXML, leading to a heap-based buffer over-read due to incorrect memory handling.
Understanding CVE-2019-20005
What is CVE-2019-20005?
An issue in ezXML 0.8.3 through 0.8.6 allows a crafted XML file to trigger a heap-based buffer over-read during strchr() processing.
The Impact of CVE-2019-20005
The vulnerability can be exploited by manipulating XML files, potentially leading to information disclosure or denial of service.
Technical Details of CVE-2019-20005
Vulnerability Description
The function ezxml_decode mishandles memory, causing a heap-based buffer over-read when strchr() is executed after a '\0' character.
Affected Systems and Versions
- Versions 0.8.3 through 0.8.6 of ezXML
Exploitation Mechanism
- By crafting malicious XML files to trigger the vulnerability
Mitigation and Prevention
Immediate Steps to Take
- Update ezXML to a non-vulnerable version
- Avoid processing untrusted XML files
Long-Term Security Practices
- Regularly update software and libraries
- Implement input validation and secure coding practices
Patching and Updates
- Apply patches or updates provided by ezXML to address the vulnerability