CVE-2023-42794

NameCVE-2023-42794
DescriptionIncomplete 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tomcat10 (PTS)bookworm, bookworm (security)10.1.6-1+deb12u2fixed
sid, trixie10.1.33-1fixed
tomcat9 (PTS)bullseye (security), bullseye9.0.43-2~deb11u10fixed
bookworm9.0.70-2fixed
sid, trixie9.0.95-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat10source(unstable)(not affected)
tomcat8source(unstable)(not affected)
tomcat9source(unstable)(not affected)

Notes

- tomcat10 <not-affected> (Windows-specific)
- tomcat9 <not-affected> (Windows-specific)
- tomcat8 <not-affected> (Windows-specific)
https://www.openwall.com/lists/oss-security/2023/10/10/8

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