CVE-2017-16820 : What You Need to Know

In the SNMP plugin of collectd before version 5.6.3, a vulnerability exists in the csnmp_read_table function in snmp.c. This flaw may lead to a double free in specific error scenarios, potentially resulting in a crash or other adverse outcomes.

Understanding CVE-2017-16820

This CVE entry highlights a vulnerability in the SNMP plugin of collectd before version 5.6.3.

What is CVE-2017-16820?

The vulnerability in the csnmp_read_table function in snmp.c in the SNMP plugin of collectd before version 5.6.3 can trigger a double free in certain error cases, potentially causing a crash or other impacts.

The Impact of CVE-2017-16820

The vulnerability could lead to a crash or other consequences due to a double free issue in specific error scenarios.

Technical Details of CVE-2017-16820

This section delves into the technical aspects of the CVE.

Vulnerability Description

The csnmp_read_table function in snmp.c in the SNMP plugin of collectd before 5.6.3 is susceptible to a double free in a certain error case, which could lead to a crash or other impacts.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions: N/A

Exploitation Mechanism

The vulnerability can be exploited through the csnmp_read_table function in snmp.c in the SNMP plugin of collectd before version 5.6.3.

Mitigation and Prevention

Protective measures and actions to mitigate the impact of CVE-2017-16820.

Immediate Steps to Take

Update collectd to version 5.6.3 or later to address the vulnerability.
Monitor vendor advisories for patches and updates.

Long-Term Security Practices

Regularly update software and plugins to the latest versions.
Implement network segmentation and access controls to limit exposure to vulnerabilities.

Patching and Updates

Apply patches provided by the vendor promptly to fix the vulnerability and enhance system security.