CVE-2023-42794CWE-459

CVE-2023-42794

Medium · published October 10, 2023

CVSS v3.1
5.9
EPSS
2%
Percentile
83.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.02304 · 83.2th percentile
Weakness
CWE-459 · Incomplete Cleanup
Published
2023-10-10T22:15Z
Affected products (2)
ProductVersionsFixed in
apache/tomcat≥ 8.5.85, < 8.5.948.5.94
apache/tomcat≥ 9.0.70, < 9.0.819.0.81
References (3)
EPSS history
Timeline
  • 10 OCT 17:17Z
    Apache Tomcat: FileUpload: DoS due to accumulation of temporary files on Windows
    cvelistv5