CVE-2023-42795
Java vulnerability analysis and mitigation

Overview

CVE-2023-42795 is an Incomplete Cleanup vulnerability discovered in Apache Tomcat that affects versions from 11.0.0-M1 through 11.0.0-M11, 10.1.0-M1 through 10.1.13, 9.0.0-M1 through 9.0.80, and 8.5.0 through 8.5.93. The vulnerability was disclosed on October 10, 2023, and involves an error in the recycling process of various internal objects that could lead to information leakage between requests (Apache Advisory).

Technical details

The vulnerability occurs when recycling various internal objects in Apache Tomcat, including request and response objects. An error could cause Tomcat to skip parts of the recycling process, potentially exposing sensitive information from the current request/response to subsequent requests. The vulnerability has been assigned a CVSS v3.1 base score of 5.3 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating it can be exploited remotely with low attack complexity and requires no privileges or user interaction (NVD).

Impact

The primary impact of this vulnerability is the potential disclosure of sensitive information. When the vulnerability is exploited, information from one request/response could leak to the next request, potentially exposing confidential data between different users or sessions (Debian Advisory).

Mitigation and workarounds

Users are recommended to upgrade to the fixed versions: Apache Tomcat 11.0.0-M12 or later, 10.1.14 or later, 9.0.81 or later, or 8.5.94 or later. These versions contain the necessary fixes to address the vulnerability (OSS Security).

Additional resources


SourceThis report was generated using AI

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