// For flags

CVE-2016-9589

wildfly: ParseState headerValuesCache can be exploited to fill heap with garbage

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Undertow en Red Hat wildfly, en versiones anteriores a la 11.0.0.Beta1, es vulnerable a un agotamiento de recursos, lo cual resulta en una denegación de servicio (DoS). Undertow mantiene una caché de las cabeceras HTTP vistas en conexiones persistentes. Se ha descubierto que esta caché puede ser explotada fácilmente para llenar la memoria con elementos no utilizados, hasta "max-headers" (200 por defecto) * "max-header-size" (1MB por defecto) por conexión TCP activa.

It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-11-23 CVE Reserved
  • 2017-03-23 CVE Published
  • 2023-09-12 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
Search vendor "Redhat"
 Jboss Wildfly Application Server
Search vendor "Redhat" for product "Jboss Wildfly Application Server"
 <= 10.1.0
Search vendor "Redhat" for product "Jboss Wildfly Application Server" and version " <= 10.1.0"
-
Affected
Redhat
Search vendor "Redhat"
 Jboss Wildfly Application Server
Search vendor "Redhat" for product "Jboss Wildfly Application Server"
 11.0.0
Search vendor "Redhat" for product "Jboss Wildfly Application Server" and version "11.0.0"
alpha1
Affected