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CVE-2023-42794: Apache Tomcat: FileUpload: DoS due to accumulation of temporary files on Windows
From: Mark Thomas <markt () apache org>
Date: Tue, 10 Oct 2023 14:17:59 -0300
Severity: low Affected versions: - Apache Tomcat 9.0.70 through 9.0.80 - Apache Tomcat 8.5.85 through 8.5.93 Description: Incomplete Cleanup vulnerability in Apache Tomcat.The internal fork of Commons FileUpload packaged with Apache Tomcat 9.0.70 through 9.0.80 and 8.5.85 through 8.5.93 included an unreleased,
in progress refactoring that exposed a potential denial of service on Windows if a web application opened a stream for an uploaded file but failed to close the stream. The file would never be deleted from disk creating the possibility of an eventual denial of service due to the disk being full.Users are recommended to upgrade to version 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.
Credit: Mohammad Khedmatgozar (cellbox) (finder) References: https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 https://tomcat.apache.org/ https://www.cve.org/CVERecord?id=CVE-2023-42794
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- CVE-2023-42794: Apache Tomcat: FileUpload: DoS due to accumulation of temporary files on Windows Mark Thomas (Oct 10)