Security Bulletin: Vulnerability in FOS firmware used by IBM b-type SAN directors and switches.

Summary

The b-type products are vulnerable due to an OpenSSL issue in the FOS firmware. The vulnerability has been addressed and can be resolved by applying the FOS code level listed below.

Vulnerability Details

CVEID:CVE-2023-0464
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by an error related to the verification of X.509 certificate chains that include policy constraints. By creating a specially crafted certificate chain that triggers exponential use of computational resources, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/250736 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

Workarounds and Mitigations