What’s Vulnerable › Vulnerabilities
CVE-2016-9589
- Severity: high (CVSS 7.5 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2018-03-12 · updated 2026-06-17
- Weakness: CWE-400
Description
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.
Affected products
- Red Hat, Inc. wildfly: through 10.1.0; 11.0.0-alpha1
References
- http://rhn.redhat.com/errata/RHSA-2017-0830.html
- http://rhn.redhat.com/errata/RHSA-2017-0831.html
- http://rhn.redhat.com/errata/RHSA-2017-0832.html
- http://rhn.redhat.com/errata/RHSA-2017-0834.html
- http://rhn.redhat.com/errata/RHSA-2017-0876.html
- http://www.securityfocus.com/bid/97060
- https://access.redhat.com/errata/RHSA-2017:0872
- https://access.redhat.com/errata/RHSA-2017:0873
- https://access.redhat.com/errata/RHSA-2017:3454
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3456
- https://access.redhat.com/errata/RHSA-2017:3458
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