SSL preoptimisation fails when Microsoft patch KB3081320 has been applied

Categories: SteelHead
Solution Number: S27621

Riverbed have discovered that SSL preoptimisation will fail if you have had installed on a Desktop or Server, MS security patch KB3081320.

Issue

Current reports are that after the installation of Microsoft patch KB3081320 the SSL preoptimisation fails.
See https://support.microsoft.com/en-us/kb/3081320 for more details.

Solution

The current workaround is to remove the patch until there is a workaround available.  Internally it is tracked in bug 248311 - SMTP-over-SSL optimization has broken with "decryption failed or bad record mac" error after applying Microsoft patch KB 3081320.

Environment

Steelhead with SSL preoptimisation enabled.

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Teneo Support