CVE-2023-42794
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. Other, EOL versions may also be affected. Users are recommended to upgrade to version 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
AlmaLinux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | tomcat-jsp-2.3-api-9.0.62-37.el9_3.1.noarch.rpm |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat-coyote | >=9.0.70,<9.0.81 | 9.0.81 |
| Maven | org.apache.tomcat:tomcat-coyote | >=8.5.85,<8.5.94 | 8.5.94 |
References
- https://access.redhat.com/errata/RHSA-2024:0474
- https://www.suse.com/security/cve/CVE-2023-42794.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-42794
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82
- http://www.openwall.com/lists/oss-security/2023/10/10/8
- https://security-tracker.debian.org/tracker/CVE-2023-42794
- https://access.redhat.com/errata/RHSA-2024:0125
- https://bugzilla.redhat.com/2235370
- https://bugzilla.redhat.com/2243749
- https://bugzilla.redhat.com/2243751
- https://bugzilla.redhat.com/2243752
- https://errata.almalinux.org/8/ALSA-2024-0125.html
- https://errata.almalinux.org/9/ALSA-2024-0474.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.