Red Hat Wildfly DoS
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.wildfly:wildfly-undertow | < 11.0.0.Beta1 | 11.0.0.Beta1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-9589
- 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
- https://bugzilla.redhat.com/show_bug.cgi?id=1404782
- https://github.com/wildfly/wildfly
- https://web.archive.org/web/20200227180917/https://www.securityfocus.com/bid/97060
- 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
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400- Platform
- Java / Kotlin (Maven)
- Package
org.wildfly:wildfly-undertow- Disclosed
- 13.05.2022
- Updated
- 11.10.2026 11:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-p4xg-cpr9-vwvj - CC BY 4.0
Vulnerability history: org.wildfly:wildfly-undertow
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 10.2018 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 2
Disclosures per year
- 2018: 1
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 3
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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