asterisk users - Dec 2005 - Asterisk seg fault (SVN-branch-1.2-r7641)

-- Executing VoiceMail("SIP/999-e59b", "500|g4") in new
stack

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1212703824 (LWP 4440)]
0x003d0110 in rawmemchr () from /lib/libc.so.6
(gdb) bt
#0  0x003d0110 in rawmemchr () from /lib/libc.so.6
#1  0x003c582b in _IO_str_init_static_internal () from /lib/libc.so.6
#2  0x003bb657 in vsscanf () from /lib/libc.so.6
#3  0x003b6bf2 in sscanf () from /lib/libc.so.6
#4  0x0055e87d in vm_exec (chan=0x8b92fc8, data=0xb7b76fe8) at 
app_voicemail.c:5501
#5  0x0808d033 in pbx_extension_helper (c=0x8b92fc8, con=Variable
"con"
is not available.
) at pbx.c:544
#6  0x0808e4d4 in __ast_pbx_run (c=0x8b92fc8) at pbx.c:2220
#7  0x0808f0dc in pbx_thread (data=0x8b92fc8) at pbx.c:2507
#8  0x004d6b80 in start_thread () from /lib/libpthread.so.0
#9  0x0042e9ce in clone () from /lib/libc.so.6