CVE-2023-24609

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Dec 22, 2023
Updated: Jan 3, 2024
CWE ID 190

Summary

CVE-2023-24609, also known as Matrix SSL and Rambus TLS Toolkit Vulnerability, affects multiple products including aVaSNP, aVaSNO, gwol6Y, aVaSNN, gwol6Z, uA7dk1, aoJOkE, aoJOkF, tzcV7y, and aVaSNQ. The vulnerability is caused by a length-subtraction integer overflow in the TLS 1.3 server's Client Hello Pre-Shared Key extension parsing. This can result in heavy CPU load on the attacked device when it calculates an SHA-2 hash over at least 65 KB in RAM due to a large number of crafted TLS messages. The danger this vulnerability poses to an organization is rated as HIGH with a base severity score of 7.5. To remediate this vulnerability, organizations should update the affected products to versions 4.6.1 or later for Matrix SSL and follow any recommended security patches for Rambus TLS Toolkit.

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