Tracker / CVE-2019-0199
CVE-2019-0199
High 7.5
The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
Affected products and versions
| apache | tomcat |
|---|---|
| apache | tomcat · 8.5.0 → 8.5.37 |
| apache | tomcat · 9.0.1 → 9.0.14 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.