Apache Tomcat: FileUpload: DoS due to accumulation of temporary files on Windows
CVE-2023-42794

7.5HIGH

Key Information:

Vendor
Apache
Status
Apache Tomcat
Vendor
CVE Published:
10 October 2023

Summary

An incomplete cleanup vulnerability in the internal fork of Commons FileUpload within Apache Tomcat affects versions 9.0.70 through 9.0.80 and 8.5.85 through 8.5.93. If a web application opens a stream for an uploaded file without closing it, the associated file remains on disk, potentially leading to a denial-of-service condition when disk space is exhausted. Users are advised to upgrade to Apache Tomcat versions 9.0.81 or 8.5.94 to mitigate this issue.

Affected Version(s)

Apache Tomcat 9.0.70 <= 9.0.80

Apache Tomcat 8.5.85 <= 8.5.93

References

https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb...
vendor-advisory
http://www.openwall.com/lists/oss-security/2023/10/10/8

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mohammad Khedmatgozar (cellbox)
.