evolution crashed with SIGSEGV in em_format_snoop_type()

Binary package hint: evolution

in Maverick, just clicking on some mails makes evolution crash.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb13ffb70 (LWP 6162)]
0x0233b430 in em_format_snoop_type (part=0x89b21e0) at em-format.c:2021
2021 em-format.c: No such file or directory.
        in em-format.c
(gdb) bt
#0 0x0233b430 in em_format_snoop_type (part=0x89b21e0) at em-format.c:2021
#1 0x0233d2ab in em_format_part_as (emf=0x857b6e0, stream=0x8aaf920, part=0x89b21e0, mime_type=0x86db858 "application/octet-stream") at em-format.c:659
#2 0x0233d3e5 in em_format_part (emf=0x857b6e0, stream=0x8aaf920, part=0x89b21e0) at em-format.c:704
#3 0x022d3589 in efh_format_message (emf=0x857b6e0, stream=0x8aaf920, part=0x89b21e0, info=0x2311730) at em-format-html.c:2782
#4 0x022d1964 in efh_format_exec (m=0x8ac8d98) at em-format-html.c:216
#5 0x022e6268 in mail_msg_proxy (msg=0x8ac8d98) at mail-mt.c:471
#6 0x0135ac8c in ?? () from /lib/libglib-2.0.so.0
#7 0x01358d6f in ?? () from /lib/libglib-2.0.so.0
#8 0x00906985 in start_thread () from /lib/libpthread.so.0
#9 0x0148e1ee in clone () from /lib/libc.so.6
(gdb) bt f
#0 0x0233b430 in em_format_snoop_type (part=0x89b21e0) at em-format.c:2021
        ct = <value optimized out>
        mem = 0x88ea7a0
        types_cache = 0x0
        filename = 0xadbd9bc0 "blackbird.rtf"
        name_type = 0x8a821b0 "application/rtf"
        magic_type = <value optimized out>
        res = <value optimized out>
        dw = 0x8be1db0
#1 0x0233d2ab in em_format_part_as (emf=0x857b6e0, stream=0x8aaf920, part=0x89b21e0, mime_type=0x86db858 "application/octet-stream") at em-format.c:659
        is_fallback = 36963503
        handle = <value optimized out>
        snoop_save = 0x0
        tmp = <value optimized out>
        base_save = 0x0
        base = 0x0
        basestr = <value optimized out>
#2 0x0233d3e5 in em_format_part (emf=0x857b6e0, stream=0x8aaf920, part=0x89b21e0) at em-format.c:704
        mime_type = <value optimized out>
        dw = <value optimized out>
#3 0x022d3589 in efh_format_message (emf=0x857b6e0, stream=0x8aaf920, part=0x89b21e0, info=0x2311730) at em-format-html.c:2782
        handle = <value optimized out>
        save = 0x0
        save_parent = 0x0
#4 0x022d1964 in efh_format_exec (m=0x8ac8d98) at em-format-html.c:216
        handle = 0xffffffff
        format = 0x857b6e0
        job = <value optimized out>
        puri_level = 0x390
        cancelled = 20147878
        base = 0xb13ff0e8
#5 0x022e6268 in mail_msg_proxy (msg=0x8ac8d98) at mail-mt.c:471
No locals.
#6 0x0135ac8c in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#7 0x01358d6f in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#8 0x00906985 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#9 0x0148e1ee in clone () from /lib/libc.so.6
No symbol table info available.
(gdb)

        dw = camel_medium_get_content_object((CamelMedium *)part);
        if (!camel_data_wrapper_is_offline(dw)) {
                CamelStreamMem *mem = (CamelStreamMem *)camel_stream_mem_new();

                if (camel_data_wrapper_decode_to_stream(dw, (CamelStream *)mem) > 0) {
                        gchar *ct = g_content_type_guess (filename, mem->buffer->data, mem->buffer->len, NULL); <====

(gdb) p filename
$3 = (const gchar *) 0xadbd9bc0 "blackbird.rtf"
(gdb) p mem->buffer->data
Cannot access memory at address 0xffffffff
(gdb) p mem->buffer
$4 = (GByteArray *) 0xffffffff
(gdb) p *mem
$5 = {parent_object = {parent_object = {parent_object = {klass = 0xb1410488, magic = 2007188717, hooks = 0x0, ref_count = 1, flags = 0, next = 0x88ea760,
        prev = 0x0}, eos = 0}, position = 1313, bound_start = 0, bound_end = 0}, owner = 0, secure = 0, buffer = 0xffffffff}

ii evolution 2.30.1.2-2ubuntu1 groupware suite with mail client and organiz
ii evolution-common 2.30.1.2-2ubuntu1 architecture independent files for Evolution
ii evolution-couchdb 0.4.5-0ubuntu1 Evolution support for CouchDB databases
ii evolution-data-server 2.30.1-4ubuntu1 evolution database backend server
ii evolution-data-server-common 2.30.1-4ubuntu1 architecture independent files for Evolution
ii evolution-dbg 2.30.1.2-2ubuntu1 debugging symbols for Evolution
ii evolution-exchange 2.30.1-2ubuntu2 Exchange plugin for the Evolution groupware
ii evolution-indicator 0.2.8-0ubuntu1 GNOME panel indicator applet for Evolution
ii evolution-plugins 2.30.1.2-2ubuntu1 standard plugins for Evolution
ii evolution-webcal 2.28.0-1 webcal: URL handler for GNOME and Evolution