Summary There is a vulnerability in the jose4j library used by IBM WebSphere Application Server traditional and used by the IBM WebSphere Application Server Liberty. Vulnerability Details ** CVEID: CVE-2023-51775 DESCRIPTION: **jose4j is vulnerable to a denial of service, caused by improper input validation. By sending a specially crafted p2c value, a remote attacker could exploit this vulnerability to cause a denial of service condition. CVSS Base score: 7.5 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/275907 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Affected Products and Versions Affected Product(s)| Version(s) —|— IBM WebSphere Application Server Liberty| 21.0.0.3 – 24.0.0.3 IBM WebSphere Application Server| 9.0 IBM WebSphere Application Server| 8.5 Remediation/Fixes IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the APAR PH60199 and APAR PH60195. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature. For IBM WebSphere Application Server Liberty 21.0.0.3 – 24.0.0.3 using the openidConnectClient-1.0, socialLogin-1.0, mpJwt-1.2, mpJwt-2.0, mpJwt-2.1, or jwt-1.0 features: · Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH60199 –OR– · Apply Fix Pack 24.0.0.4 or later (targeted…Read More