CVE-2018-19416 Explained : Impact and Mitigation

Sysstat 12.1.1 has a vulnerability in the remap_struct function in sa_common.c, leading to an out-of-bounds read during a memmove call when using sadf.

Understanding CVE-2018-19416

This CVE involves a specific vulnerability in the Sysstat software version 12.1.1.

What is CVE-2018-19416?

CVE-2018-19416 is a security vulnerability in Sysstat 12.1.1 that allows for an out-of-bounds read due to a flaw in the remap_struct function.

The Impact of CVE-2018-19416

The vulnerability can be exploited to cause a denial of service or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2018-19416

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue arises from an out-of-bounds read in the remap_struct function during a memmove call, specifically demonstrated in the usage of sadf.

Affected Systems and Versions

Product: Sysstat 12.1.1
Vendor: N/A
Version: N/A

Exploitation Mechanism

The vulnerability is exploited by triggering the out-of-bounds read through the execution of the memmove call in the remap_struct function.

Mitigation and Prevention

Protecting systems from CVE-2018-19416 requires specific actions to mitigate the risk.

Immediate Steps to Take

Apply vendor patches or updates if available.
Consider limiting access to vulnerable components.
Monitor for any unusual activity that could indicate exploitation.

Long-Term Security Practices

Regularly update software and systems to prevent known vulnerabilities.
Implement network segmentation to contain potential attacks.

Patching and Updates

Check for patches or updates from Sysstat to address the vulnerability.