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Cisco Bug: CSCus27634 - PE core on startup due to xcp secret decryption

Last Modified

May 05, 2017

Products (2)

  • Cisco Unified Communications Manager IM & Presence Service
  • Cisco Unified Communications Manager IM and Presence Service Version 10.5

Known Affected Releases

10.5(2)

Description (partial)

Symptom:
After fresh installing or upgrading to  CUCM IM & Presence 10.5.2.10000-9, the Cisco Presence Engine service will not start, and will generate a core file with the following backtrace:

Thread 1 (Thread 0x2aa5f750 (LWP 12086)):
#0  0x00958430 in __kernel_vsyscall ()
#1  0x01ed0871 in raise () from /lib/libc.so.6
#2  0x01ed214a in abort () from /lib/libc.so.6
#3  0x01f10735 in __libc_message () from /lib/libc.so.6
#4  0x01f16b91 in malloc_printerr () from /lib/libc.so.6
#5  0x01f192f8 in _int_free () from /lib/libc.so.6
#6  0x085b17fd in pe::PeConfig::getSecurityPassword() ()
#7  0x085b83a2 in pe::PeConfig::onLoad(bedrock::SmartPtr<oam::Config>) ()
#8  0x08a0b182 in oam::ConfigModule::loadInitialConfig() ()
#9  0x089e072d in oam::loadInitialConfig() ()
#10 0x089e114a in boot() ()
#11 0x089dfc2f in main ()

1 Thread 0x2aa5f750 (LWP 12086)  0x00958430 in __kernel_vsyscall ()

Conditions:
After fresh installing or upgrading to CUCM IM & Presence 10.5.2.10000-9, the Cisco Presence Engine service will not start, and will generate a core file.

The conditions are undefined because the issue is due to insufficient memory being allocated by the Cisco Presence Engine to store the decrypted security password. Due to the undefined nature of such insufficient memory allocations, it cannot be stated with 100% confidence as to what length the security password must be to avoid the Cisco Presence Engine from coring.

For Example:
Within Cisco labs, it was found that a security password of 11 or less characters did not cause the Cisco Presence Engine to core. However because of the undefined nature of the underlying root cause, this may only be applicable to this particular lab setup, and in fact may not hold true on other setups.
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Bug Details Include

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