undertow: Large AJP request may cause DoS
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Undertow | affected |
|
Configuration 1 [-]
|
| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat Fuse 7.11.1 | |||
| undertow | cpe:/a:redhat:jboss_fuse:7 | RHSA-2022:8652 | 2022-11-28T00:00:00Z |
| Red Hat JBoss Enterprise Application Platform 7 | |||
| undertow | cpe:/a:redhat:jboss_enterprise_application_platform:7.4 | RHSA-2022:6825 | 2022-10-05T00:00:00Z |
| Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 | |||
| eap7-activemq-artemis-0:1.5.5.016-1.redhat_00001.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-artemis-native-1:1.5.5.016-1.redhat_00001.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-jboss-xnio-base-0:3.5.11-1.Final_redhat_00001.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-jsoup-0:1.14.2-1.redhat_00002.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-undertow-0:1.4.18-14.SP13_redhat_00001.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-wildfly-0:7.1.10-2.GA_redhat_00002.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-woodstox-core-0:5.0.3-2.redhat_00002.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| eap7-xml-security-0:2.0.10-2.redhat_00002.1.ep7.el7 | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | RHSA-2025:4226 | 2025-04-28T00:00:00Z |
| Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 | |||
| eap7-jackson-annotations-0:2.10.4-3.redhat_00006.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-jackson-core-0:2.10.4-3.redhat_00006.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-jackson-databind-0:2.10.4-5.redhat_00006.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-jackson-jaxrs-providers-0:2.10.4-3.redhat_00006.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-jackson-modules-base-0:2.10.4-5.redhat_00006.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-jackson-modules-java8-0:2.10.4-2.redhat_00006.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-jboss-server-migration-0:1.7.2-16.Final_redhat_00017.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-netty-0:4.1.63-5.Final_redhat_00003.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-undertow-0:2.0.41-4.SP5_redhat_00001.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-wildfly-0:7.3.14-3.GA_redhat_00002.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| eap7-wildfly-elytron-0:1.10.17-1.Final_redhat_00001.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 | RHSA-2025:9583 | 2025-06-25T00:00:00Z |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 | |||
| eap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el8eap | cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el8 | RHSA-2022:6822 | 2022-10-05T00:00:00Z |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 | |||
| eap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el9eap | cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el9 | RHSA-2022:6823 | 2022-10-05T00:00:00Z |
| Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 | |||
| eap7-undertow-0:2.2.19-1.SP2_redhat_00001.1.el7eap | cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el7 | RHSA-2022:6821 | 2022-10-05T00:00:00Z |
No data available yet.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-6522 | When a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Undertow's AjpServerRequestConduit implementation closes a connection without sending any response to the client/proxy. This behavior results in that a front-end proxy marking the backend worker (application server) as an error state and not forward requests to the worker for a while. In mod_cluster, this continues until the next STATUS request (10 seconds intervals) from the application server updates the server state. So, in the worst case, it can result in "All workers are in error state" and mod_cluster responds "503 Service Unavailable" for a while (up to 10 seconds). In mod_proxy_balancer, it does not forward requests to the worker until the "retry" timeout passes. However, luckily, mod_proxy_balancer has "forcerecovery" setting (On by default; this parameter can force the immediate recovery of all workers without considering the retry parameter of the workers if all workers of a balancer are in error state.). So, unlike mod_cluster, mod_proxy_balancer does not result in responding "503 Service Unavailable". An attacker could use this behavior to send a malicious request and trigger server errors, resulting in DoS (denial of service). This flaw was fixed in Undertow 2.2.19.Final, Undertow 2.3.0.Alpha2. |
Github GHSA |
GHSA-95rf-557x-44g5 | Undertow vulnerable to Dos via Large AJP request |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 1.1% (1.093% probability within 30 days)
Key SSVC decision points have not yet been added.
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
|
epss
|
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.3::el7 |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat jboss Enterprise Application Platform Eus
|
|
| CPEs | cpe:/a:redhat:jboss_enterprise_application_platform_eus:7.1::el7 | |
| Vendors & Products |
Redhat jboss Enterprise Application Platform Eus
|