CVE-2019-5442 : Vulnerability Insights and Analysis
Learn about CVE-2019-5442, a vulnerability in Pippo 1.12.0 leading to Denial of Service due to XML Entity Expansion. Find mitigation steps and long-term security practices.
XML Entity Expansion (Billion Laughs Attack) on Pippo 1.12.0 leads to a Denial of Service situation due to memory exhaustion.
Understanding CVE-2019-5442
Exploiting XML Entity Expansion, specifically the Billion Laughs Attack, on Pippo 1.12.0 results in a Denial of Service situation by depleting memory.
What is CVE-2019-5442?
- The vulnerability involves creating entities recursively, consuming significant heap memory, and exhausting the JVM process memory.
- Without memory bounds, the exhaustion extends to impact other system processes.
The Impact of CVE-2019-5442
- Denial of Service due to memory depletion, potentially affecting system stability and performance.
Technical Details of CVE-2019-5442
Vulnerability Description
- XML Entity Expansion (CWE-776) leading to a Billion Laughs Attack on Pippo 1.12.0.
Affected Systems and Versions
- Product: Pippo
- Version: 1.12.0
Exploitation Mechanism
- Recursive creation of entities causing heap memory consumption and JVM process memory exhaustion.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches or updates provided by the vendor.
- Implement memory limits and proper input validation.
Long-Term Security Practices
- Regularly monitor and update software components.
- Conduct security assessments and audits.
Patching and Updates
- Stay informed about security advisories and apply patches promptly.