Uncontrolled resource consumption in Red Hat wildfly
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
Undertow in Red Hat wildfly before version 11.0.0.Beta1 is vulnerable to a resource exhaustion resulting in a denial of service. Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to "max-headers" (default 200) * "max-header-size" (default 1MB) per active TCP connection.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | wildfly | 11.0.0.Beta1 | — | No fix listed | CNA |
| — | org.wildfly:wildfly-undertow (Maven) | before 11.0.0.Beta1 | 11.0.0.Beta1 | Patch available | GHSA-p4xg-cpr9-vwvj |
- wildfly VendorRed Hat Affected 11.0.0.Beta1 Fixed in — No fix listed CNA
- org.wildfly:wildfly-undertow (Maven) Vendor— Affected before 11.0.0.Beta1 Fixed in 11.0.0.Beta1 Patch available GHSA-p4xg-cpr9-vwvj
Remediation
- Fix · GHSA-p4xg-cpr9-vwvj org.wildfly:wildfly-undertow (Maven) Fixed in 11.0.0.Beta1 Advisory →
Red Hat 11 advisories
- RHSA-2017:3458 Released 2017-12-13 · Red Hat rating Importanteap7-jboss-ec2-eap security update
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 Server eap7-jboss-ec2-eap-7.1.0-5.GA_redhat_5.ep7.el6, eap7-jboss-ec2-eap-samples-7.1.0-5.GA_redhat_5.ep7.el6
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 Server eap7-jboss-ec2-eap-7.1.0-5.GA_redhat_5.ep7.el7, eap7-jboss-ec2-eap-samples-7.1.0-5.GA_redhat_5.ep7.el7
- RHSA-2017:3455 Released 2017-12-13 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.0 security update
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 Server eap7-activemq-artemis-1.5.5.008-1.redhat_1.1.ep7.el7, eap7-activemq-artemis-cli-1.5.5.008-1.redhat_1.1.ep7.el7, eap7-activemq-artemis-commons-1.5.5.008-1.redhat_1.1.ep7.el7 +47
- RHSA-2017:3454 Released 2017-12-13 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.0 security update
- Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 Server eap7-activemq-artemis-1.5.5.008-1.redhat_1.1.ep7.el6, eap7-activemq-artemis-cli-1.5.5.008-1.redhat_1.1.ep7.el6, eap7-activemq-artemis-commons-1.5.5.008-1.redhat_1.1.ep7.el6 +47
Show 8 more Red Hat advisories
- RHSA-2017:3456 Released 2017-12-13 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.0 security update
- Red Hat JBoss EAP 7.1
- RHSA-2017:0872 Released 2017-04-04 · Red Hat rating ModerateRed Hat Single Sign-On 7.1 update on RHEL 6
- Red Hat Single Sign-On 7.1 for RHEL 6 Server rh-sso7-1-2.jbcs.el6, rh-sso7-freemarker-2.3.23-1.redhat_2.2.jbcs.el6, rh-sso7-javapackages-tools-3.4.1-5.15.3.jbcs.el6 +13
- RHSA-2017:0873 Released 2017-04-04 · Red Hat rating ModerateRed Hat Single Sign-On 7.1 update on RHEL 7
- Red Hat Single Sign-On 7.1 for RHEL 7 Server rh-sso7-1-2.jbcs.el7, rh-sso7-freemarker-2.3.23-1.redhat_2.2.jbcs.el7, rh-sso7-javapackages-tools-3.4.1-5.15.3.jbcs.el7 +13
- RHSA-2017:0876 Released 2017-04-04 · Red Hat rating ModerateRed Hat Single Sign-On 7.1 update
- Red Hat Single Sign-On 7.1
- RHSA-2017:0834 Released 2017-03-22 · Red Hat rating Importantjboss-ec2-eap package for EAP 7.0.5
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 Server eap7-jboss-ec2-eap-7.0.5-1.GA_redhat_1.ep7.el6, eap7-jboss-ec2-eap-samples-7.0.5-1.GA_redhat_1.ep7.el6
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 Server eap7-jboss-ec2-eap-7.0.5-1.GA_redhat_1.ep7.el7, eap7-jboss-ec2-eap-samples-7.0.5-1.GA_redhat_1.ep7.el7
- RHSA-2017:0831 Released 2017-03-22 · Red Hat rating ImportantJBoss Enterprise Application Platform 7.0.5 on RHEL 6
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 Server eap7-activemq-artemis-1.1.0-16.SP19_redhat_1.1.ep7.el6, eap7-activemq-artemis-cli-1.1.0-16.SP19_redhat_1.1.ep7.el6, eap7-activemq-artemis-commons-1.1.0-16.SP19_redhat_1.1.ep7.el6 +47
- RHSA-2017:0832 Released 2017-03-22 · Red Hat rating ImportantJBoss Enterprise Application Platform 7.0.5 on RHEL 7
- Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 Server eap7-activemq-artemis-1.1.0-16.SP19_redhat_1.1.ep7.el7, eap7-activemq-artemis-cli-1.1.0-16.SP19_redhat_1.1.ep7.el7, eap7-activemq-artemis-commons-1.1.0-16.SP19_redhat_1.1.ep7.el7 +47
- RHSA-2017:0830 Released 2017-03-22 · Red Hat rating ModerateRed Hat JBoss Enterprise Application Platform security update
- Red Hat JBoss EAP 7.0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss EAP 7.0 | Fixed | RHSA-2017:0830 |
| Red Hat JBoss EAP 7.1 | Fixed | RHSA-2017:3456 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 Server | Fixed | RHSA-2017:0831, RHSA-2017:0834 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 Server | Fixed | RHSA-2017:0832, RHSA-2017:0834 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 Server | Fixed | RHSA-2017:3454, RHSA-2017:3458 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 Server | Fixed | RHSA-2017:3455, RHSA-2017:3458 |
| Red Hat Single Sign-On 7.1 | Fixed | RHSA-2017:0876 |
| Red Hat Single Sign-On 7.1 for RHEL 6 Server | Fixed | RHSA-2017:0872 |
| Red Hat Single Sign-On 7.1 for RHEL 7 Server | Fixed | RHSA-2017:0873 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9589
- 2026-10-03 Alias added: GHSA-p4xg-cpr9-vwvj
- 2026-11-06 Fix available: Red Hat JBoss EAP 7.0, Red Hat JBoss EAP 7.1 · Red Hat
References
Advisory 12
More Red Hat Jboss Wildfly Application Server vulnerabilities
- TI-2016-00710 Incomplete blacklist vulnerability in the servlet filter restriction mechanism in WildFly… CVSS 3.0HIGH 7.5
- TI-2015-02829 The Undertow module of WildFly 9.x before 9.0.0.CR2 and 10.x before 10.0.0.Alpha1 allows… CVSS 3.0HIGH 7.5
- TI-2016-04313 CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red… CVSS 3.0MEDIUM 6.1
- TI-2015-04356 Cross-site request forgery (CSRF) vulnerability in the Web Console (web-console) in Red… CVSS 2.0MEDIUM 6.8
- TI-2015-04382 The Web Console in Red Hat Enterprise Application Platform (EAP) before 6.4.4 and WildFly… CVSS 2.0MEDIUM 5.0
- TI-2018-00968 Improper input validation in Red Hat Wildfly CVSS 3.0MEDIUM 5.5
Sources
- CVE-2016-9589 · CVE Program
- CVE-2016-9589 · NVD
- FIRST EPSS
- GHSA-p4xg-cpr9-vwvj · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9589 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences