xstreamproject xstream CVE-2021-21348 vulnerability in Xstreamproject and Other Products
Published on March 23, 2021

XStream is vulnerable to an attack using Regular Expression for a Denial of Service (ReDos)

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XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to occupy a thread that consumes maximum CPU time and will never return. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

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Vulnerability Analysis

CVE-2021-21348 is exploitable with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Types

What is a Resource Exhaustion Vulnerability?

The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CVE-2021-21348 has been classified to as a Resource Exhaustion vulnerability or weakness.

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2021-21348 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.


Products Associated with CVE-2021-21348

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-21348 are published in these products:

Xstreamproject Xstream
 
Debian Linux
 
Canonical Ubuntu Linux
 
Fedora Project Fedora
 
Oracle Banking Enterprise Default Management
 
Oracle Banking Platform
 
Oracle Banking Virtual Account Management
 
Oracle Business Activity Monitoring
 
Oracle Communications Billing Revenue Management Elastic Charging Engine
 
Oracle Communications Policy Management
 
Oracle Communications Unified Inventory Management
 
Oracle Retail Xstore Point Of Service
 
Oracle Webcenter Portal
 
Oracle MySQL
 
NetApp Oncommand Insight
 
Apache ActiveMQ
 
Apache JMeter
 
Xstream
 

Affected Versions

x-stream xstream Version < 1.4.16 is affected by CVE-2021-21348

Vulnerable Packages

The following package name and versions may be associated with CVE-2021-21348

Package Manager Vulnerable Package Versions Fixed In
maven com.thoughtworks.xstream:xstream < 1.4.16 1.4.16

Exploit Probability

EPSS
0.20%
Percentile
41.85%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.