Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.

Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-23672
• https://lists.apache.org/thread/cmpswfx6tj4s7x0nxxosvfqs11lvdx2f
• apache/tomcat@0052b37
• apache/tomcat@3631adb
• apache/tomcat@52d6650
• apache/tomcat@b0e3b1b
• https://security.netapp.com/advisory/ntap-20240402-0002
• https://lists.debian.org/debian-lts-announce/2024/04/msg00001.html
• http://www.openwall.com/lists/oss-security/2024/03/13/4