CVE-2022-39368: Californium Failing DTLS handshakes causes Data Loss due to throttling blocking processing of records
A flaw was found in the Eclipse Californium Scandium package. This issue occurs when failing handshakes don't clean up counters for throttling, causing the threshold to be reached without being released again, resulting in a denial of service. An attacker could submit a high quantity of server requests, leaving the server unable to respond.
Other sources
Eclipse Californium is a Java implementation of RFC7252 - Constrained Application Protocol for IoT Cloud services. In versions prior to 3.7.0, and 2.7.4, Californium is vulnerable to a Denial of Service. Failing handshakes don't cleanup counters for throttling, causing the threshold to be reached without being released again. This results in permanently dropping records. The issue was reported for certificate based handshakes, but may also affect PSK based handshakes. It generally affects client and server as well. This issue is patched in version 3.7.0 and 2.7.4. There are no known workarounds. main: commit 726bac57659410da463dcf404b3e79a7312ac0b9 2.7.x: commit 5648a0c27c2c2667c98419254557a14bac2b1f3f
Affected Software
Remediation
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is CVE-2022-39368?
CVE-2022-39368 is a vulnerability in the Eclipse Californium Scandium package that allows for a Denial of Service attack.
What is the severity of CVE-2022-39368?
CVE-2022-39368 has a severity rating of 8.2 (High).
How does CVE-2022-39368 affect Eclipse Californium?
CVE-2022-39368 affects versions of Eclipse Californium prior to 3.7.0 and 2.7.4, allowing for Denial of Service attacks.
How can I fix CVE-2022-39368?
To fix CVE-2022-39368, upgrade to Eclipse Californium version 3.7.0 or higher, or version 2.7.4 or higher.
Where can I find more information about CVE-2022-39368?
More information about CVE-2022-39368 can be found at the following references: [CVE website](https://www.cve.org/CVERecord?id=CVE-2022-39368), [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-39368), [GitHub Security Advisory](https://github.com/eclipse-californium/californium/security/advisories/GHSA-p72g-cgh9-ghjgc), [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi?id=2145205), [Red Hat Errata](https://access.redhat.com/errata/RHSA-2023:2100).