CVE-2018-16666 Explained : Impact and Mitigation

Contiki-NG version up to 4.1 has a stack-based buffer overflow vulnerability in the aql-lexer.c file. This can be exploited during AQL parsing, leading to potential security risks.

Understanding CVE-2018-16666

This CVE identifies a specific vulnerability in Contiki-NG versions up to 4.1, potentially allowing attackers to execute malicious code.

What is CVE-2018-16666?

CVE-2018-16666 is a stack-based buffer overflow vulnerability found in the next_string function within the aql-lexer.c file of the os/storage/antelope module in Contiki-NG versions up to 4.1.

The Impact of CVE-2018-16666

The vulnerability can be exploited by attackers to trigger a buffer overflow during the parsing of AQL, specifically when processing the next string. This could lead to arbitrary code execution or denial of service.

Technical Details of CVE-2018-16666

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

A stack-based buffer overflow occurs in the next_string function within the aql-lexer.c file of the os/storage/antelope module in Contiki-NG versions up to 4.1.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Up to Contiki-NG 4.1

Exploitation Mechanism

The buffer overflow vulnerability arises during the parsing of AQL, specifically when handling the next string, allowing attackers to potentially execute malicious code.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2018-16666.

Immediate Steps to Take

Update Contiki-NG to version 4.2 or later to patch the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Regularly update and patch all software components to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Apply patches and updates provided by Contiki-NG promptly to address the buffer overflow vulnerability.