title: Jetty connection leaking on idle timeout when TCP congested
description: Jetty is a Java based web server and servlet engine. An HTTP/2 SSL connection that is established and TCP congested will be leaked when it times out. An attacker can cause many connections to end up in this state, and the server may run out of file descriptors, eventually causing the server to stop accepting new connections from valid clients. The vulnerability is patched in 9.4.54, 10.0.20, 11.0.20, and 12.0.6.
problem types: CWE-400: Uncontrolled Resource Consumption
affected:
{
vendor: jetty
product: jetty.project
versions:
version: >= 9.3.0, <= 9.4.53, status: affected
version: >= 10.0.0, <= 10.0.19, status: affected
version: >= 11.0.0, <= 11.0.19, status: affected
version: >= 12.0.0, <= 12.0.5, status: affected
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]