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CVE Vulnerabilities

CVE-2021-20318

Deserialization of Untrusted Data

Published: Dec 23, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.2
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
6.6 MODERATE
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-20318
CWEhttps://cwe.mitre.org/data/definitions/502.html

The HornetQ component of Artemis in EAP 7 was not updated with the fix for CVE-2016-4978. A remote attacker could use this flaw to execute arbitrary code with the permissions of the application using a JMS ObjectMessage.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Jboss_enterprise_application_platform Redhat 7.3.9-general_availability (including) 7.3.9-general_availability (including)
Jboss_enterprise_application_platform Redhat 7.4.0-general_availability (including) 7.4.0-general_availability (including)
Important: Red Hat JBoss Enterprise Application Platform 7.4.3 security update RedHat Artemis *
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 RedHat eap7-hornetq-0:2.4.8-1.Final_redhat_00001.1.el8eap *
Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 RedHat eap7-hornetq-0:2.4.8-1.Final_redhat_00001.1.el7eap *

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

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