CVE-2023-21838

Name of the Vulnerable Software and Affected Versions Oracle WebLogic Server versions 12.2.1.3.0 through 12.2.1.4.0 Oracle WebLogic Server version 14.1.1.0.0

Description The issue is related to insufficient input validation in the Core component of Oracle WebLogic Server, allowing an unauthenticated attacker with network access via T3 or IIOP to compromise the server. Successful attacks can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle WebLogic Server.

Recommendations For Oracle WebLogic Server versions 12.2.1.3.0 and 12.2.1.4.0, update to a version that includes the fix for this issue. For Oracle WebLogic Server version 14.1.1.0.0, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the T3 and IIOP protocols to minimize the risk of exploitation.