CVE-2018-1000216 Explained : Impact and Mitigation

The cJSON library, specifically versions 1.7.2 and earlier, contains a vulnerability known as CWE-415: Double Free. Exploiting this vulnerability could lead to a crash or remote code execution. The impact varies based on cJSON library implementation, potentially leading to local or network-based attacks. The vulnerability has been resolved in version 1.7.3.

Understanding CVE-2018-1000216

This CVE involves a Double Free vulnerability in the cJSON library.

What is CVE-2018-1000216?

The cJSON library versions 1.7.2 and earlier are susceptible to a Double Free vulnerability, allowing attackers to potentially crash systems or execute remote code by manipulating JSON data.

The Impact of CVE-2018-1000216

Exploiting this vulnerability could result in system crashes or remote code execution.
Attackers need to manipulate victims into displaying JSON data to carry out the attack.
Impact ranges from local to network-based attacks depending on cJSON library implementation.

Technical Details of CVE-2018-1000216

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a Double Free issue in cJSON versions 1.7.2 and earlier.

Affected Systems and Versions

cJSON library versions 1.7.2 and earlier are affected.

Exploitation Mechanism

Attackers exploit the vulnerability by coercing victims to print JSON data.

Mitigation and Prevention

Protect systems from CVE-2018-1000216 with these measures:

Immediate Steps to Take

Update cJSON library to version 1.7.3 to mitigate the vulnerability.
Be cautious when handling JSON data to prevent exploitation.

Long-Term Security Practices

Regularly update software and libraries to patch vulnerabilities.
Educate users on safe handling of JSON data to prevent attacks.

Patching and Updates

Ensure all systems are updated with the latest cJSON library version (1.7.3) to address the vulnerability.