CVE-2021-30468

Apache CXF Denial of service vulnerability in parsing JSON via JsonMapObjectReaderWriter

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the JsonMapObjectReaderWriter of Apache CXF allows an attacker to submit malformed JSON to a web service, which results in the thread getting stuck in an infinite loop, consuming CPU indefinitely. This issue affects Apache CXF versions prior to 3.4.4; Apache CXF versions prior to 3.3.11.

Una vulnerabilidad en la función JsonMapObjectReaderWriter de Apache CXF permite a un atacante enviar un JSON malformado hacia un servicio web, lo que hace que el subproceso se quede atascado en un bucle infinito, consumiendo CPU indefinidamente. Este problema afecta a Apache CXF versiones anteriores a 3.4.4 y Apache CXF versiones anteriores a 3.3.11

Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector, the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library. This release of Red Hat JBoss Web Server 5.7.0 serves as a replacement for Red Hat JBoss Web Server 5.6.1. This release includes bug fixes, enhancements and component upgrades, which are documented in the Release Notes, linked to in the References. Issues addressed include denial of service and privilege escalation vulnerabilities.

*Credits: N/A

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

2021-04-08 CVE Reserved
2021-06-16 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (17)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2021/06/16/2	Mailing List
https://lists.apache.org/thread.html/r3f46ae38e4a6e80c069cdb320e0ce831b0a21a12ef0cc92c0943f34a%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r4771084730c4cf6e59eda60b4407122c86f174eb750b24f610ba9ff4%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r4a4b6bc0520b69c18d2a59daa6af84ae49f0c22164dccb8538794459%40%3Cannounce.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r4a4b6bc0520b69c18d2a59daa6af84ae49f0c22164dccb8538794459%40%3Cdev.cxf.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r4a4b6bc0520b69c18d2a59daa6af84ae49f0c22164dccb8538794459%40%3Cusers.cxf.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r54c0f1cbbb9f381dfbedb9ea5e90ecb1c0a15371f40c4b10322ac737%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/ra833f78b3fa577cb43558cf343859a1bf70b1c5ce2353b3877d96422%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rac07822057521dccf33ab5d136e0e8c599a6e2c8ac75e44ffbdc6e07%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/re5b2a2b77faa22684d47bd2ac6623135c615565328ff40a1ec705448%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/re9e05c6cab5f0dcc827eba4e6fcf26fa0b493e7ca84d62c867a80d03%40%3Ccommits.tomee.apache.org%3E	Mailing List
https://security.netapp.com/advisory/ntap-20210917-0002	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2022.html	2023-11-07
https://www.oracle.com/security-alerts/cpuoct2021.html	2023-11-07

URL	Date	SRC
http://cxf.apache.org/security-advisories.data/CVE-2021-30468.txt.asc	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-30468	2022-11-02
https://bugzilla.redhat.com/show_bug.cgi?id=1973392	2022-11-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Cxf Search vendor "Apache" for product "Cxf"				< 3.3.11 Search vendor "Apache" for product "Cxf" and version " < 3.3.11"		-		Affected
Apache Search vendor "Apache"		Cxf Search vendor "Apache" for product "Cxf"				>= 3.4.0 < 3.4.4 Search vendor "Apache" for product "Cxf" and version " >= 3.4.0 < 3.4.4"		-		Affected
Apache Search vendor "Apache"		Tomee Search vendor "Apache" for product "Tomee"				8.0.6 Search vendor "Apache" for product "Tomee" and version "8.0.6"		-		Affected
Oracle Search vendor "Oracle"		Business Intelligence Search vendor "Oracle" for product "Business Intelligence"				5.5.0.0.0 Search vendor "Oracle" for product "Business Intelligence" and version "5.5.0.0.0"		enterprise		Affected
Oracle Search vendor "Oracle"		Business Intelligence Search vendor "Oracle" for product "Business Intelligence"				5.9.0.0.0 Search vendor "Oracle" for product "Business Intelligence" and version "5.9.0.0.0"		enterprise		Affected
Oracle Search vendor "Oracle"		Business Intelligence Search vendor "Oracle" for product "Business Intelligence"				12.2.1.3.0 Search vendor "Oracle" for product "Business Intelligence" and version "12.2.1.3.0"		enterprise		Affected
Oracle Search vendor "Oracle"		Business Intelligence Search vendor "Oracle" for product "Business Intelligence"				12.2.1.4.0 Search vendor "Oracle" for product "Business Intelligence" and version "12.2.1.4.0"		enterprise		Affected
Oracle Search vendor "Oracle"		Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager"				8.2.2 Search vendor "Oracle" for product "Communications Element Manager" and version "8.2.2"		-		Affected
Oracle Search vendor "Oracle"		Communications Messaging Server Search vendor "Oracle" for product "Communications Messaging Server"				8.1 Search vendor "Oracle" for product "Communications Messaging Server" and version "8.1"		-		Affected