snmpd crashes with segmentation faults

Performing "snmpbulkwalk" against some of our OSX 10.10.3 nodes running on Xserve 3,1 reliably causes snmpd daemon to crash with...

Jul 7 01:17:45 distribution4 com.apple.xpc.launchd[1] (org.net-snmp.snmpd[33337]): Service exited due to signal: Segmentation fault: 11

Here is what a crash report looks like:

Process: snmpd [74548]

Path: /usr/libexec/snmpd

Identifier: snmpd

Version: 143

Code Type: X86-64 (Native)

Parent Process: launchd [1]

Responsible: snmpd [74548]

User ID: 0

Date/Time: 2015-07-07 19:22:40.309 -0700

OS Version: Mac OS X 10.10.3 (14D136)

Report Version: 11

Anonymous UUID: D123FD65-A125-2CF3-6EAF-8E4A442660B1

Time Awake Since Boot: 1000000 seconds

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000

VM Regions Near 0:

-->

__TEXT 000000010b075000-000000010b079000 [ 16K] r-x/rwx SM=COW /usr/libexec/snmpd

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread

0 libsystem_c.dylib 0x00007fff8823c210 strncpy + 112

1 libnetsnmpmibs.25.dylib 0x000000010b0dbe9d Get_Next_Device + 38

2 libnetsnmpmibs.25.dylib 0x000000010b0dbb30 header_hrdevice + 398

3 libnetsnmpmibs.25.dylib 0x000000010b0db455 var_hrdevice + 85

4 libnetsnmpagent.25.dylib 0x000000010b0a7c28 netsnmp_old_api_helper + 398

5 libnetsnmpagent.25.dylib 0x000000010b0810de netsnmp_call_handler + 303

6 libnetsnmpagent.25.dylib 0x000000010b0a3be2 netsnmp_bulk_to_next_helper + 404

7 libnetsnmpagent.25.dylib 0x000000010b0810de netsnmp_call_handler + 303

8 libnetsnmpagent.25.dylib 0x000000010b08da85 handle_var_requests + 95

9 libnetsnmpagent.25.dylib 0x000000010b08e6ba handle_pdu + 526

10 libnetsnmpagent.25.dylib 0x000000010b08c5b5 netsnmp_handle_request + 354

11 libnetsnmpagent.25.dylib 0x000000010b08a9db handle_snmp_packet + 290

12 libnetsnmp.25.dylib 0x000000010b1f61bd 0x10b1ce000 + 164285

13 libnetsnmp.25.dylib 0x000000010b1f48bb _sess_read + 2439

14 libnetsnmp.25.dylib 0x000000010b1f3eee snmp_read2 + 38

15 snmpd 0x000000010b07770f 0x10b075000 + 9999

16 libdyld.dylib 0x00007fff899f55c9 start + 1

Thread 1:: Dispatch queue: com.apple.libdispatch-manager

0 libsystem_kernel.dylib 0x00007fff8fd8b232 kevent64 + 10

1 libdispatch.dylib 0x00007fff885d9a6a _dispatch_mgr_thread + 52

Thread 2:

0 libsystem_kernel.dylib 0x00007fff8fd8a94a __workq_kernreturn + 10

1 libsystem_pthread.dylib 0x00007fff861e340d start_wqthread + 13

Thread 3:

0 libsystem_kernel.dylib 0x00007fff8fd8a94a __workq_kernreturn + 10

1 libsystem_pthread.dylib 0x00007fff861e340d start_wqthread + 13

Thread 0 crashed with X86 Thread State (64-bit):

rax: 0x0000000000000000 rbx: 0x00007fa73e801790 rcx: 0x0000000000000002 rdx: 0x0000000000000028

rdi: 0x000000010b15dab0 rsi: 0x0000000000000000 rbp: 0x00007fff54b89bd0 rsp: 0x00007fff54b89708

r8: 0x000000010b15dab0 r9: 0x0000000000000000 r10: 0x00007fa73b31e6b0 r11: 0x00007fff77317f98

r12: 0x0000000000000002 r13: 0x00007fa73e8017a1 r14: 0x000000010b1520b8 r15: 0x0000000000000010

rip: 0x00007fff8823c210 rfl: 0x0000000000010213 cr2: 0x0000000000000000

Logical CPU: 1

Error Code: 0x00000004

Trap Number: 14

Binary Images:

(omitted)

External Modification Summary:

Calls made by other processes targeting this process:

task_for_pid: 1

thread_create: 0

thread_set_state: 0

Calls made by this process:

task_for_pid: 0

thread_create: 0

thread_set_state: 0

Calls made by all processes on this machine:

task_for_pid: 358812

thread_create: 0

thread_set_state: 0

VM Region Summary:

ReadOnly portion of Libraries: Total=143.1M resident=41.7M(29%) swapped_out_or_unallocated=101.4M(71%)

Writable regions: Total=186.5M written=3788K(2%) resident=4980K(3%) swapped_out=0K(0%) unallocated=181.7M(97%)

REGION TYPE VIRTUAL

=========== =======

CoreServices 256K

Dispatch continuations 32.0M

Kernel Alloc Once 4K

MALLOC 144.3M

MALLOC (admin) 32K

STACK GUARD 56.0M

Stack 9304K

VM_ALLOCATE 336K

__DATA 6844K

__LINKEDIT 71.1M

__TEXT 71.9M

__UNICODE 552K

mapped file 25.5M

shared memory 4K

=========== =======

TOTAL 417.9M

Systems affected by this issue have been upgraded from older OSX Server versions (10.6 and/or 10.8). SNMP configuration has been stripped to a bare minimum (rocommunity, syscontact, syslocation strings). /usr/sbin/snmpd executable appears identical to unaffected nodes that had Yosemite freshly installed.

Questions...

• What could be causing this?
• Is there a simple fix?
• Is there a procedure on how to fully refresh SNMP configuration including executables, MIBs, etc., on Yosemite - short of a full OS reinstall?

Thanks!