CVE-2019-20388 : Security Advisory and Response

A memory leak vulnerability in libxml2 version 2.9.10 can be exploited through the xmlSchemaPreRun function, potentially leading to memory leaks during xmlSchemaValidateStream.

Understanding CVE-2019-20388

This CVE involves a memory leak issue in libxml2 version 2.9.10 that can occur during the xmlSchemaValidateStream process.

What is CVE-2019-20388?

The vulnerability in xmlSchemaPreRun function within libxml2 version 2.9.10 allows for a memory leak to happen during xmlSchemaValidateStream, potentially impacting system stability and performance.

The Impact of CVE-2019-20388

The memory leak vulnerability in libxml2 version 2.9.10 could be exploited by an attacker to cause memory exhaustion, leading to denial of service or other potential security risks.

Technical Details of CVE-2019-20388

This section provides more technical insights into the vulnerability.

Vulnerability Description

The xmlSchemaPreRun function in xmlschemas.c within libxml2 version 2.9.10 contains a memory leak that can occur during xmlSchemaValidateStream.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: 2.9.10

Exploitation Mechanism

The vulnerability can be exploited by triggering the xmlSchemaPreRun function, leading to memory leaks during the xmlSchemaValidateStream process.

Mitigation and Prevention

Protecting systems from CVE-2019-20388 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches or updates provided by the vendor to address the memory leak issue.
Monitor system resources for any signs of memory exhaustion.

Long-Term Security Practices

Regularly update software and libraries to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address memory-related issues.

Patching and Updates

Ensure that the affected systems are patched with the latest updates to prevent exploitation of the memory leak vulnerability.