Preview Tool

Cisco Bug: CSCus29775 - SSL: Sporadic TLS 1.2 connection errors on 5500-X platforms with DHE

Last Modified

Feb 13, 2018

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

100.13(15.21) 9.3(2)

Description (partial)

A TLS 1.2 connection may fail to complete successfully.
When this happens ASA will display the 402123 (vpn-CRYPTO) sylog , show counters (PKP_ERRORS) and  show ssl errors . If the SSL connection is retried, the session will be successful.

This can happen when using TLS 1.2 DHE ciphers.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.