Brocade Fabric OS

2 more products


22 June 2022

22 June 2022



Base Score: 5.9 MEDIUM Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N




Security Advisory ID : BSA-2022-765

Component : OpenSSL

Revision : 1.0

If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0-byte record is received with invalid padding compared to if a 0-byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also, the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q). More at:

Affected Products

  • Brocade ASCG OVA before v2.1.0
  • Brocade SANnav versions before v2.2.0.2 and v2.1.1.8 on port 443 & 18082

Products Confirmed Not Vulnerable

  • Brocade Fabric OS

No other Brocade Fibre Channel Products from Broadcom are affected by this vulnerability.


A security update has been provided in Brocade ASCG OVA version 2.1.0, Brocade SANnav v2.2.0.2 and Brocade SANnav v2.1.1.8 on ports 443 & 18082, and upper Brocade ASCG and Brocade SANnav releases.

Revision History

1.0Initial PublicationJune 22, 2022