In Apache Tomcat 9.0.0.M1 to 9.0.0.M18 and 8.5.0 to 8.5.12, the handling of an HTTP/2 GOAWAY frame for a connection did not close streams associated with that connection that were currently waiting for a WINDOW_UPDATE before allowing the application to write more data. These waiting streams each consumed a thread. A malicious client could therefore construct a series of HTTP/2 requests that would consume all available processing threads.
{
"nvd_published_at": "2017-04-17T16:59:00Z",
"github_reviewed_at": "2022-07-01T13:50:28Z",
"github_reviewed": true,
"severity": "HIGH",
"cwe_ids": [
"CWE-404"
]
}