Description (CNA)
A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 0 before 2.2.38.Final |
| Red Hat / Red Hat build of Apache Camel 4.14.2 for Spring Boot 3.5.8 | unaffected |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 | unaffected 0:1.4.18-21.SP19_redhat_00001.1.ep7.el7 before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 | unaffected 0:2.0.41-8.SP9_redhat_00001.1.el7eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4.24 | unaffected 2.2.39.Final-redhat-00001 before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | unaffected 0:2.2.39-1.Final_redhat_00001.1.el7eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | unaffected 0:7.4.24-4.GA_redhat_00002.1.el7eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | unaffected 0:2.2.39-1.Final_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | unaffected 0:7.4.24-4.GA_redhat_00002.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | unaffected 0:2.2.39-1.Final_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | unaffected 0:7.4.24-4.GA_redhat_00002.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 | unaffected |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | unaffected 0:1.83.0-1.redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | unaffected 0:33.0.0-2.jre_redhat_00003.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | unaffected 0:4.0.6-1.redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | unaffected 0:1.0.0-3.redhat_00009.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | unaffected 0:2.0.2-1.Final_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | unaffected 0:2.3.23-1.SP3_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | unaffected 0:1.83.0-1.redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | unaffected 0:33.0.0-2.jre_redhat_00003.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | unaffected 0:4.0.6-1.redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | unaffected 0:1.0.0-3.redhat_00009.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | unaffected 0:2.0.2-1.Final_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | unaffected 0:2.3.23-1.SP3_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1.3 | unaffected 2.3.20.SP4-redhat-00001 before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:4.0.10-1.redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:1.82.0-1.redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:801.3.0-1.GA_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:1.0.1-3.redhat_00003.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:6.6.36-1.Final_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:4.0.2-1.Final_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:2.5.0-1.redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:2.3.20-2.SP4_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:8.1.3-4.GA_redhat_00006.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:5.0.12-1.Final_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:2.6.6-1.Final_redhat_00001.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | unaffected 0:8.1.1-4.GA_redhat_00007.1.el8eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:4.0.10-1.redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:1.82.0-1.redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:801.3.0-1.GA_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:1.0.1-3.redhat_00003.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:6.6.36-1.Final_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:4.0.2-1.Final_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:2.5.0-1.redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:2.3.20-2.SP4_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:8.1.3-4.GA_redhat_00006.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:5.0.12-1.Final_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:2.6.6-1.Final_redhat_00001.1.el9eap before * |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | unaffected 0:8.1.1-4.GA_redhat_00007.1.el9eap before * |
| Red Hat / Red Hat Single Sign-On 7.6.13 | unaffected |
| Red Hat / Red Hat Single Sign-On 7.6 for RHEL 7 | unaffected 0:18.0.20-1.redhat_00001.1.el7sso before * |
| Red Hat / Red Hat Single Sign-On 7.6 for RHEL 8 | unaffected 0:18.0.20-1.redhat_00001.1.el8sso before * |
| Red Hat / Red Hat Single Sign-On 7.6 for RHEL 9 | unaffected 0:18.0.20-1.redhat_00001.1.el9sso before * |
| Red Hat / RHEL-8 based Middleware Containers | unaffected 7.6-85 before * |
| Red Hat / Red Hat build of Apache Camel - HawtIO 4 | unaffected |
| Red Hat / Red Hat Data Grid 8 | affected |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected |
| Red Hat / Red Hat Fuse 7 | affected |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7 | affected |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8 | unaffected |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8 | unaffected |
| Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack | affected |
| Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack | unaffected |
| Red Hat / Red Hat Process Automation 7 | affected |
CWE
CWE-770
References
- https://access.redhat.com/errata/RHSA-2025:23143
- https://access.redhat.com/errata/RHSA-2026:0383
- https://access.redhat.com/errata/RHSA-2026:0384
- https://access.redhat.com/errata/RHSA-2026:0386
- https://access.redhat.com/errata/RHSA-2026:33371
- https://access.redhat.com/errata/RHSA-2026:33372
- https://access.redhat.com/errata/RHSA-2026:3889
- https://access.redhat.com/errata/RHSA-2026:3891
- https://access.redhat.com/errata/RHSA-2026:3892
- https://access.redhat.com/errata/RHSA-2026:4915
- https://access.redhat.com/errata/RHSA-2026:4916
- https://access.redhat.com/errata/RHSA-2026:4917
- https://access.redhat.com/errata/RHSA-2026:4924
- https://access.redhat.com/errata/RHSA-2026:76128
- https://access.redhat.com/errata/RHSA-2026:76129
- https://access.redhat.com/errata/RHSA-2026:76130
- https://access.redhat.com/errata/RHSA-2026:76132
- https://access.redhat.com/errata/RHSA-2026:76134
- https://access.redhat.com/security/cve/CVE-2025-9784
- https://bugzilla.redhat.com/show_bug.cgi?id=2392306
- https://github.com/undertow-io/undertow/pull/1778
- https://github.com/undertow-io/undertow/releases/tag/2.2.38.Final
- https://issues.redhat.com/browse/UNDERTOW-2598
- https://kb.cert.org/vuls/id/767506
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.