CVE-2023-6378: 
Java vulnerability analysis and mitigation

A serialization vulnerability was discovered in the logback receiver component of logback version 1.4.11. The vulnerability, identified as CVE-2023-6378, affects logback versions 1.2.0 prior to 1.2.13, 1.3.0 prior to 1.3.12, and 1.4.0 prior to 1.4.12. The issue was disclosed in November 2023 and impacts the core functionality of the logback logging framework (CVE Mitre, NVD).

The vulnerability exists in the receiver component of logback, where a serialization flaw can be exploited when processing incoming data. The issue has been assigned a CVSS score of 7.5 (HIGH) with the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating a high severity rating with network accessibility and no required privileges or user interaction (NetApp Security).

When successfully exploited, the vulnerability can lead to a Denial-of-Service (DoS) condition in affected systems. The impact is particularly significant for systems that have the logback receiver component enabled and accessible to potential attackers (NetApp Security).

The vulnerability has been fixed in logback versions 1.2.13, 1.3.12, and 1.4.12. Users are strongly advised to upgrade to these or later versions. For version 1.2.x users, the fixes are effective only when running under Java 9 and later (Logback News).