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Infinite loop in Apache CFX

High severity GitHub Reviewed Published Jan 6, 2022 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

maven org.apache.cxf:apache-cxf (Maven)

Affected versions

>= 3.4.0, < 3.4.4
< 3.3.11

Patched versions

3.4.4
3.3.11
maven org.apache.cxf:cxf (Maven)
>= 3.4.0, < 3.4.4
< 3.3.11
3.4.4
3.3.11

Description

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.

References

Published by the National Vulnerability Database Jun 16, 2021
Reviewed Jun 17, 2021
Published to the GitHub Advisory Database Jan 6, 2022
Last updated Feb 1, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.584%
(79th percentile)

Weaknesses

CVE ID

CVE-2021-30468

GHSA ID

GHSA-g23v-p5jq-jvh4

Source code

No known source code
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