Summary

A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. OpenSSL 3.1, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.

Products Affected

• Brocade Fabric OS v9.2.x

Products Confirmed Not Affected

• Brocade Fabric OS v8x, v9.1.1x

• Brocade ASG is Not Affected.

• Brocade SANnav is Not Affected.

Solution

Security update in Brocade Fabric OS v9.2.1 and v9.2.0b

Revision History

Disclaimer

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