CVE-2024-1635

Highest-risk unexploited with PoCs

Exploit code exists, no confirmed in-the-wild activity, ranked by EPSS

Actively Exploited

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CVSS 7.5EPSS 5%

Published 2024-02-19Updated 2025-04-27

Vulnerability details

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNAredhat

EPSS score history

Sources

2 links

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NVD Analysis CVE Organization

Profile

CVSS

7.5

EPSS

Published

2024-02-19

Updated

2025-04-27

CNA

redhat

Vendors

Red Hat

27 products

CPEs

cpe:/a:redhat:apache_camel_spring_boot:4.4::el6

cpe:/a:redhat:jboss_fuse:7

cpe:/a:redhat:jboss_enterprise_application_platform:7.4

cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7

cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7

cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el8

cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el9

cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el7

cpe:/a:redhat:red_hat_single_sign_on:7.6::el7

cpe:/a:redhat:red_hat_single_sign_on:7.6::el8

cpe:/a:redhat:red_hat_single_sign_on:7.6::el9

cpe:/a:redhat:rhosemc:1.0::el8

cpe:/a:redhat:red_hat_single_sign_on:7.6

cpe:/a:redhat:serverless:1

cpe:/a:redhat:camel_quarkus:3

cpe:/a:redhat:camel_spring_boot:3

cpe:/a:redhat:camel_spring_boot:4

cpe:/a:redhat:service_registry:2

cpe:/a:redhat:build_keycloak:

cpe:/a:redhat:optaplanner:::el6

cpe:/a:redhat:quarkus:2

cpe:/a:redhat:quarkus:3

cpe:/a:redhat:jboss_data_grid:8

cpe:/a:redhat:integration:1

cpe:/a:redhat:camel_quarkus:2

cpe:/a:redhat:jboss_data_grid:7

cpe:/a:redhat:jboss_enterprise_application_platform:8

cpe:/a:redhat:jboss_fuse_service_works:6

cpe:/a:redhat:jboss_enterprise_bpms_platform:7

cpe:/a:redhat:amq_streams:1

cpe:/a:redhat:jboss_fuse:7.13

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