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Security Bulletin: IBM Event Streams is vulnerable to a denial of service attack due to the k8sio apiMAChinery component (CVE-2023-44487).

Summary IBM Event Streams is vulnerable to a denial of service attack due to the k8sio apiMAChinery component. k8sio apiMachinery is utilized for handling Kubernetes API interactions, facilitating streamlined communication with Kubernetes clusters within event-driven applications. Vulnerability Details ** CVEID: CVE-2023-44487 DESCRIPTION: **Multiple vendors are vulnerable to a denial of service, caused by a flaw in handling multiplexed streams in the HTTP/2 protocol. By sending numerous HTTP/2 requests and RST_STREAM frames over multiple streams, a remote attacker could exploit this vulnerability to cause a denial of service due to server resource consumption. CVSS Base score: 7.5 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268044 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 Event Streams| 11.1.5-11.3.2 Remediation/Fixes IBM strongly recommends addressing the vulnerability now by upgrading Upgrade to IBM Event Streams 11.4.0 by following the upgrading and migrating documentation. Workarounds and Mitigations…Read More

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