CVE-2019-19588 : Security Advisory and Response
Learn about CVE-2019-19588, a vulnerability in Python validators package versions 0.12.2 to 0.12.5 causing an infinite loop. Find out the impact, affected systems, exploitation, and mitigation steps.
A vulnerability in the validators package versions 0.12.2 to 0.12.5 in Python could lead to an infinite loop when a specific function is used with crafted input.
Understanding CVE-2019-19588
This CVE identifies a flaw in the validators package for Python that could result in an infinite loop under certain conditions.
What is CVE-2019-19588?
The issue arises when the function validators.domain is utilized with a specially crafted domain string, causing the program to enter an infinite loop. This vulnerability affects versions 0.12.2 to 0.12.5 of the validators package.
The Impact of CVE-2019-19588
Exploitation of this vulnerability could lead to a denial of service (DoS) condition due to the infinite loop, potentially impacting the availability of the system.
Technical Details of CVE-2019-19588
This section delves into the technical aspects of the CVE.
Vulnerability Description
The validators package versions 0.12.2 to 0.12.5 in Python can get stuck in an infinite loop when the function validators.domain is called with a manipulated domain string. This issue has been addressed in version 0.12.6.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: 0.12.2 to 0.12.5
Exploitation Mechanism
The vulnerability is triggered when the validators.domain function is supplied with a specifically crafted domain string, causing the software to loop indefinitely.
Mitigation and Prevention
Protecting systems from CVE-2019-19588 involves immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade to version 0.12.6 of the validators package to mitigate the vulnerability.
- Avoid using the validators.domain function with untrusted or manipulated input.
Long-Term Security Practices
- Regularly update software packages to ensure the latest security patches are applied.
- Implement input validation mechanisms to prevent the exploitation of similar vulnerabilities.
- Monitor for any unusual system behavior that could indicate a DoS attack.
- Stay informed about security advisories and updates related to the validators package.
Patching and Updates
Ensure that all systems using the validators package are updated to version 0.12.6 or later to prevent the risk of encountering the infinite loop vulnerability.