cve/2019/CVE-2019-10072.md

CVE-2019-10072

Description

The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

POC

Reference

• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://www.oracle.com/security-alerts/cpuapr2020.html
• https://www.oracle.com/security-alerts/cpujan2020.html
• https://www.oracle.com/security-alerts/cpuoct2020.html
• https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/ilmari666/cybsec
• https://github.com/vshaliii/Basic-Pentesting-2-Vulnhub-Walkthrough