Symptom:
CLI Process crashed on a non-production ASR5500 while customer was executing cli show commands as well in the middle of integrating TACACS server to the ASR.



 ******** show crash list *******
==         ====         =======  ========== =========== ================
#          Time         Process   Card/CPU/     SW         HW_SER_NUM
                                     PID      VERSION   MIO / Crash Card
==         ====         =======  ========== =========== ================

1  2013-Nov-06+21:27:19 cli      05/0/11938 14.0(51375) SAD171900D2/SAD171900D2
********************* CRASH #01 ***********************

Fatal Signal 11: Segmentation fault
  PC: [f7e5de97/X] libc.so.6/vsnprintf()
  Faulty address: 0xf61ae018
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=5 cpu=0 arch=X pid=11938 cpu=~52% argv0=cli
  Crash time: 2013-Nov-06+21:27:19 UTC
  Recent errno: 115 Operation now in progress
  Stack (131071@0xfff2a000, probably truncated):
    [f7e5de97/X] libc.so.6/vsnprintf() sp=0xfff2aeb8
    [f7e4a415/X] libc.so.6/snprintf() sp=0xfff2aed8
    [088f6c72/X] mgmt_sctrl_show_configuration_errors_virtual_apn_rules() sp=0xfff34bd8

Conditions:
Software level 14.0