Version-Release number of selected component (if applicable):
net-snmp-5.5-13.fc13.x86_64

How reproducible:
always

Steps to Reproduce:
1. /etc/snmp/snmptrapd.conf:
authCommunity   log,execute,net public
traphandle SNMPv2-MIB::coldStart /bin/tail -a /var/run/test.out

2. service snmptrapd restart
3. let snmptrapd process a coldStart trap, e.g. using this /etc/snmp/snmpd.conf and service snmpd restart:
rwcommunity public
trap2sink localhost

  
Actual results:
snmptrapd crashes

Expected results:
snmptrapd survives, /var/run/test.out contains the trap

Additional info:
stack trace:
Program received signal SIGABRT, Aborted.
(gdb) bt full
#0  0x00007ffff50d29a5 in raise () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007ffff50d4185 in abort () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007ffff510fd5b in __libc_message () from /lib64/libc.so.6
No symbol table info available.
#3  0x00007ffff519b277 in __fortify_fail () from /lib64/libc.so.6
No symbol table info available.
#4  0x00007ffff5199170 in __chk_fail () from /lib64/libc.so.6
No symbol table info available.
#5  0x00007ffff4e162ed in strcpy () at /usr/include/bits/string3.h:107
No locals.
#6  netsnmp_mktemp () at system.c:1236
        name = "/var/run/net-snmp/snmp-tmp-XXXXX"
        fd = -1
        __func__ = "netsnmp_mktemp"
#7  0x00007ffff68da725 in run_shell_command (command=0x7ffff82a1180 "/bin/tail
-a /var/run/test.out", 
    input=0x7ffff82e3720 "dhcp-2-160.brq.redhat.com\nUDP:
[127.0.0.1]:55170->[127.0.0.1]\nDISMAN-EVENT-MIB::sysUpTimeInstance
0:0:00:00.05\nSNMPv2-MIB::snmpTrapOID.0
SNMPv2-MIB::coldStart\nSNMPv2-MIB::snmpTrapEnterprise.0 NET-SNMP"...,
output=0x0, out_len=0x0) at mibgroup/utilities/execute.c:64
        file = <value optimized out>
        ifname = <value optimized out>
        ofname = <value optimized out>
        shellline =
"\230\311\377\377\377\177\000\000\230\311\377\377\377\177\000\000\377\377\377\377\377\377\377\377\240\310\377\377\377\177\000\000\001\000\000\000\000\000\000\000\027y\345\364\377\177\000\000\250\313\377\377\377\177\000\000m\206\031\365\377\177\000\000\001\200\255\373\000\000\000\000\230\311\377\377\377\177\000\000\230\311\377\377\377\177\000\000\230\311\377\377\377\177\000\000\230\311\377\377\377\177\000\000\243\311\377\377\377\177\000\000\377\377\377\377\377\377\377\377\230\311\377\377\377\177\000\000\377\377\377\377\377\377\377\377",
'\000' <repeats 40 times>"\340, \003\000\000\004", '\000' <repeats 27
times>"\277,
,.\370\377\177\000\000\340(.\370\377\177\000\000\340(.\370\377\177\000\000\000\000\000\000\000\000\000\000x\207\374\367\377\177\000\000\177\000\000\000\000\000\000\000\377\377\377\377\000\000\000\000\001",
'\000' <repeats 15 times>, "t\002\336\367\377\177", '\000' <repeats 11
times>"\311,
\377\377\377\177\000\000p\310\377\377\377\177\000\000\000\311\377\377\377\177\000\000\070\304\374\367\377\177\000\000(\000\000\000\000\000\000\000Ox<\023\000\000\000\000`\v\336\367\377\177\000\000\001\000\000\000\000\000\000\000\341\361L\000\000\000\000\000\017\000\000\000\060\000\000\000\b[\212"...
        result = <value optimized out>
        __func__ = "run_shell_command"
#8  0x00007ffff7bd01b0 in command_handler (pdu=0x7ffff82e3180,
transport=0x7ffff82b7a30, handler=0x7ffff82c4790) at snmptrapd_handlers.c:835
        v2_pdu = 0x7ffff82e3180
        rbuf = 0x7ffff82e3720 "dhcp-2-160.brq.redhat.com\nUDP:
[127.0.0.1]:55170->[127.0.0.1]\nDISMAN-EVENT-MIB::sysUpTimeInstance
0:0:00:00.05\nSNMPv2-MIB::snmpTrapOID.0
SNMPv2-MIB::coldStart\nSNMPv2-MIB::snmpTrapEnterprise.0 NET-SNMP"...
        r_len = 320
        o_len = 226
        oldquick = 0
        __func__ = "command_handler"
...