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Cisco Bug: CSCur46253 - sshd crash on sshd when rsa key is set to 4096

Last Modified

Sep 17, 2019

Products (8)

  • Cisco Network Convergence System 6000 Series Routers
  • Cisco IOS XR Software
  • Cisco ASR 9922 Router
  • Cisco ASR 9010 Router
  • Cisco ASR 9904 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases


Description (partial)

Symptom:Crash seen with SSH while spawning a new session. Its a stack corruption during the key exchange phase.

Conditions:Need to generate 4096 bit RSA key (default), then when we connect to the use SSH child session will pick this as the RSA key and we can see stack corruption and crash.

Related Community Discussions

ASR9000/XR - Disk Mirroring causing RSP crash / corruption
We are in the process of troubleshooting disk mirroring on our RSP440-TR's.  Every time we enable, the RSP crashes.   Detailed information on the three (3) scenarios and log results are listed below.   I'm curious if disk mirroring is necessary on our ASR9k's.  I've read various posts that reference that there's no purpose to disk mirroring at all along with the following bug CSCus34978 where it references the RSP going corrupt after enabling disk mirroring.  ...
Latest activity: May 25, 2015
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