CVE-2023-30362 : Vulnerability Insights and Analysis

A Buffer Overflow vulnerability in the

coap_send

function in the

libcoap

library version 4.3.1-103-g52cfd56, which is fixed in version 4.3.1-120-ge242200, allows attackers to obtain sensitive information via a malformed protocol data unit (PDU).

Understanding CVE-2023-30362

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2023-30362.

What is CVE-2023-30362?

CVE-2023-30362 is a Buffer Overflow vulnerability in the

coap_send

function in the

libcoap

library, potentially enabling attackers to access sensitive information through specially crafted PDUs.

The Impact of CVE-2023-30362

This vulnerability can be exploited by malicious actors to gather sensitive data by sending manipulated PDUs, posing a risk to the confidentiality and integrity of systems utilizing the affected

libcoap

library.

Technical Details of CVE-2023-30362

Explore the specifics of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises in the

coap_send

function of

libcoap

4.3.1-103-g52cfd56, where an overflow condition occurs due to improper handling of data, leading to unauthorized information disclosure.

Affected Systems and Versions

All systems using

libcoap

version 4.3.1-103-g52cfd56 are impacted, while the issue is resolved in version 4.3.1-120-ge242200 of the library.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted PDUs to the

coap_send

function, triggering the buffer overflow and gaining unauthorized access to sensitive data.

Mitigation and Prevention

Learn how to address the CVE-2023-30362 vulnerability, with immediate actions and long-term security practices to safeguard systems.

Immediate Steps to Take

Immediately update the

libcoap

library to version 4.3.1-120-ge242200 or later to mitigate the Buffer Overflow vulnerability and prevent potential data breaches.

Long-Term Security Practices

Regularly monitor for security updates and patches in third-party libraries, conduct security audits, and implement secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and releases from the

libcoap

project to stay protected against emerging threats and ensure the timely application of patches.