medium
6.5
CWE
835 502
Advisory Published
CVE Published
Updated

CVE-2021-39140: XStream can cause a Denial of Service

First published: Sun Aug 22 2021(Updated: )

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Credit: security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
redhat/xstream<0:1.3.1-16.el7_9
0:1.3.1-16.el7_9
debian/libxstream-java
1.4.11.1-1+deb10u3
1.4.11.1-1+deb10u4
1.4.15-3+deb11u2
1.4.20-1
redhat/xstream<1.4.18
1.4.18
Xstream Project Xstream<1.4.18
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Fedoraproject Fedora=35
Netapp Snapmanager Oracle
Netapp Snapmanager Sap
Oracle Business Activity Monitoring=12.2.1.4.0
Oracle Commerce Guided Search=11.3.2
Oracle Communications Billing And Revenue Management Elastic Charging Engine=11.3
Oracle Communications Billing And Revenue Management Elastic Charging Engine=12.0
Oracle Communications Cloud Native Core Automated Test Suite=1.9.0
Oracle Communications Cloud Native Core Binding Support Function=1.10.0
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Communications Unified Inventory Management=7.3.4
Oracle Communications Unified Inventory Management=7.3.5
Oracle Communications Unified Inventory Management=7.4.0
Oracle Communications Unified Inventory Management=7.4.1
Oracle Communications Unified Inventory Management=7.4.2
Oracle Retail Xstore Point of Service=16.0.6
Oracle Retail Xstore Point of Service=17.0.4
Oracle Retail Xstore Point of Service=18.0.3
Oracle Retail Xstore Point of Service=19.0.2
Oracle Retail Xstore Point of Service=20.0.1
Oracle Utilities Framework=4.2.0.2.0
Oracle Utilities Framework=4.2.0.3.0
Oracle Utilities Framework=4.3.0.1.0
Oracle Utilities Framework=4.3.0.6.0
Oracle Utilities Framework=4.4.0.0.0
Oracle Utilities Framework=4.4.0.2.0
Oracle Utilities Framework=4.4.0.3.0
Oracle Utilities Testing Accelerator=6.0.0.1.1
Oracle WebCenter Portal=12.2.1.3.0
Oracle WebCenter Portal=12.2.1.4.0

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://www.oracle.com/security-alerts/cpujan2022.html

Remedy

https://www.oracle.com/security-alerts/cpujul2022.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-39140?

    CVE-2021-39140 is a vulnerability in XStream that allows a remote attacker to allocate 100% CPU time on the target system, leading to a denial of service.

  • How severe is CVE-2021-39140?

    CVE-2021-39140 has a severity score of 6.5, indicating a medium-level vulnerability.

  • Which software versions are affected by CVE-2021-39140?

    CVE-2021-39140 affects XStream versions up to and exclusive of 1.4.18, as well as specific versions of libxstream-java and certain packages in Debian, Red Hat, Fedora, Netapp, Oracle, and other software.

  • How can a remote attacker exploit CVE-2021-39140?

    A remote attacker can exploit CVE-2021-39140 by manipulating XML serialized objects, causing the target system to allocate 100% CPU time and resulting in a denial of service.

  • Are there any fixes or remedies available for CVE-2021-39140?

    Yes, upgrading to XStream version 1.4.18 or applying the specific remedies provided for the affected software can mitigate the vulnerability.

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