CVE Vulnerabilities

CVE-2021-28165

Uncontrolled Resource Consumption

Published: Apr 01, 2021 | Modified: Aug 27, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
7.8 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

In Eclipse Jetty 7.2.2 to 9.4.38, 10.0.0.alpha0 to 10.0.1, and 11.0.0.alpha0 to 11.0.1, CPU usage can reach 100% upon receiving a large invalid TLS frame.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Name Vendor Start Version End Version
Jetty Eclipse 7.2.2 (including) 9.4.39 (excluding)
Jetty Eclipse 10.0.0 (including) 10.0.2 (excluding)
Jetty Eclipse 11.0.0 (including) 11.0.2 (excluding)
Red Hat AMQ 7.8.2 RedHat jetty-server *
Red Hat AMQ 7.9.0 RedHat jetty-server *
Red Hat AMQ Streams 1.6.4 RedHat jetty-server *
Red Hat AMQ Streams 1.8.0 RedHat jetty-server *
Red Hat Developer Tools RedHat rh-eclipse-jetty-0:9.4.40-1.1.el7_9 *
Red Hat Fuse 7.9 RedHat jetty *
Red Hat Integration Camel Quarkus 2 RedHat jetty *
Red Hat OpenShift Container Platform 4.7 RedHat jenkins-0:2.277.3.1620393611-1.el8 *
Red Hat OpenShift Container Platform 4.7 RedHat runc-0:1.0.0-95.rhaos4.8.gitcd80260.el7 *
RHAF Camel-K 1.8 RedHat jetty *
Equinox-bundles Ubuntu bionic *
Equinox-bundles Ubuntu focal *
Equinox-bundles Ubuntu groovy *
Equinox-bundles Ubuntu hirsute *
Equinox-bundles Ubuntu impish *
Equinox-bundles Ubuntu kinetic *
Equinox-bundles Ubuntu lunar *
Equinox-bundles Ubuntu trusty *

Potential Mitigations

  • Mitigation of resource exhaustion attacks requires that the target system either:

  • The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

  • The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

References