CVE-2018-11778 : Security Advisory and Response

Apache Ranger prior to version 1.2.0 is affected by a Stack-based buffer overflow vulnerability. Users are advised to update to the latest version.

Understanding CVE-2018-11778

Apache Ranger 1.2.0 update addressed a Stack-based buffer overflow vulnerability in UnixAuthenticationService.

What is CVE-2018-11778?

CVE-2018-11778 is a vulnerability in Apache Ranger versions prior to 1.2.0 that could lead to a Stack-based buffer overflow.

The Impact of CVE-2018-11778

The vulnerability could allow attackers to execute arbitrary code or crash the service, potentially leading to a denial of service.

Technical Details of CVE-2018-11778

Apache Ranger vulnerability details and affected systems.

Vulnerability Description

The UnixAuthenticationService in Apache Ranger 1.2.0 was updated to prevent Stack-based buffer overflow by handling user input correctly.

Affected Systems and Versions

Product: Apache Ranger
Vendor: Apache Software Foundation
Versions Affected: Prior to 1.2.0

Exploitation Mechanism

Attackers could exploit this vulnerability by crafting malicious input to trigger the buffer overflow.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2018-11778.

Immediate Steps to Take

Upgrade Apache Ranger systems to version 1.2.0 or later.
Monitor for any unusual activities that could indicate exploitation.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from Apache Software Foundation.