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Cisco Bug: CSCuq16398 - AES_256 cipher issues after upgrading to SDK 6.9.4

Last Modified

Aug 29, 2018

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases

8.0.1-111 8.5.6-074 9.0.0-500 9.1.0-032

Description (partial)

Symptom:
1. No secure mails delivered.  
2. Error message in encryption logs:

Wed Jul 30 22:27:25 2014 Critical: PXE encryption - Thread-2, http.HttpConnectionTinySSL, Unable to negotiate TLS connection: Retry 1 of 1 in 2000 milliseconds

Conditions:
IEA used as key server for ESA.

1. IEA configured to accept AES_256 ciphers only.
2. Upgrade from AsyncOS 7.x to AsyncOS 8.x.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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