CVE-2022-39368 : Security Advisory and Response
Discover the impact and mitigation strategies for CVE-2022-39368 affecting Eclipse Californium versions prior to 3.7.0 and 2.7.4. Learn about the Denial of Service risk and recommended patches.
This article discusses the CVE-2022-39368 vulnerability in Eclipse Californium, affecting versions prior to 3.7.0 and 2.7.4.
Understanding CVE-2022-39368
This CVE involves a Denial of Service vulnerability in Eclipse Californium due to failing DTLS handshakes causing data loss.
What is CVE-2022-39368?
Eclipse Californium is a Java implementation of RFC7252 for IoT Cloud services. Failing handshakes in versions prior to 3.7.0 and 2.7.4 lead to a Denial of Service. The issue affects both client and server as failing handshakes do not cleanup counters for throttling, causing records to be permanently dropped.
The Impact of CVE-2022-39368
The vulnerability results in data loss due to throttling blocking the processing of records, potentially disrupting IoT cloud services. The issue may affect both certificate and PSK based handshakes.
Technical Details of CVE-2022-39368
This section delves into the specifics of the vulnerability.
Vulnerability Description
Californium's failing handshakes lead to a Denial of Service as counters for throttling are not cleaned up, causing a threshold limit to be reached without release.
Affected Systems and Versions
The vulnerability affects Eclipse Californium versions >= 2.7.0 and < 2.7.4, as well as versions >= 3.0.0 and < 3.7.0.
Exploitation Mechanism
The issue arises from failing handshakes in Eclipse Californium that do not release throttling thresholds, resulting in permanent data loss.
Mitigation and Prevention
Learn how to address and prevent CVE-2022-39368.
Immediate Steps to Take
Users are advised to update Eclipse Californium to version 3.7.0 or 2.7.4 to patch the vulnerability, as there are no known workarounds.
Long-Term Security Practices
In addition to immediate patching, implementing secure coding practices and performing regular security assessments can enhance overall security.
Patching and Updates
Ensure timely application of updates and security patches to mitigate the risk of vulnerabilities like CVE-2022-39368.