Resource exhaustion in Red Hat, Inc. Wildfly

CVE-2016-9589

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.030 (86.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-9589?
CVE-2016-9589 is a high-severity vulnerability in Red Hat, Inc. Wildfly, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-03-12.
How severe is CVE-2016-9589?
High severity. CVSS v3 base score is 7.5 out of 10.