CVE-2019-15026 Explained : Impact and Mitigation

In memcached version 1.5.16, a stack-based buffer over-read issue was identified in the conn_to_str function when UNIX sockets are used.

Understanding CVE-2019-15026

This CVE entry pertains to a specific vulnerability found in memcached version 1.5.16.

What is CVE-2019-15026?

CVE-2019-15026 is a stack-based buffer over-read vulnerability in the conn_to_str function of memcached.c, particularly when UNIX sockets are being utilized.

The Impact of CVE-2019-15026

This vulnerability could potentially allow an attacker to read sensitive information from the memory of the affected system, leading to a breach of confidentiality.

Technical Details of CVE-2019-15026

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in memcached 1.5.16 arises due to a stack-based buffer over-read in the conn_to_str function within memcached.c.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 1.5.16

Exploitation Mechanism

The vulnerability can be exploited when UNIX sockets are being used in memcached version 1.5.16.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2019-15026.

Immediate Steps to Take

Update memcached to a non-vulnerable version.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update software to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Ensure that memcached is regularly updated to the latest version to address security vulnerabilities.