NetSight
IP …
high7.5

CVE-2024-1635

Undertow Uncontrolled Resource Consumption Vulnerability

Impact

A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connection immediately, the server will end with both memory and open file limits exhausted at some point, depending on the amount of memory available. At HTTP upgrade to remoting, the WriteTimeoutStreamSinkConduit leaks connections if RemotingConnection is closed by Remoting ServerConnectionOpenListener. Because the remoting connection originates in Undertow as part of the HTTP upgrade, there is an external layer to the remoting connection. This connection is unaware of the outermost layer when closing the connection during the connection opening procedure. Hence, the Undertow WriteTimeoutStreamSinkConduit is not notified of the closed connection in this scenario. Because WriteTimeoutStreamSinkConduit creates a timeout task, the whole dependency tree leaks via that task, which is added to XNIO WorkerThread. So, the workerThread points to the Undertow conduit, which contains the connections and causes the leak.

Affected packages

EcosystemPackageAffectedFixed in
mavenio.undertow:undertow-core>= 2.3.0.Final, < 2.3.12.Final2.3.12.Final

Affected products

VendorProductAffected versions
NetappActive Iq Unified Manager
All versions
NetappOncommand Workflow Automation
All versions
RedhatFuse
Version 1.0
RedhatIntegration Camel For Spring Boot
All versions
RedhatJboss Enterprise Application Platform
Version 7.4
RedhatOpenshift Container Platform
Versions 4.11, 4.12
RedhatOpenshift Container Platform For Linuxone
Versions 4.9, 4.10
RedhatOpenshift Container Platform For Power
Versions 4.9, 4.10
RedhatSingle Sign-On
All versions
Version 7.6

Weakness classification

CWE-400

References