Ethereal-dev: [Ethereal-dev] [grin@xxxxxxxxxxxxxxx: Bug#81164: ethereal: segfault analysing a
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: Frederic Peters <fpeters@xxxxxxxx>
Date: Sun, 7 Jan 2001 22:41:22 +0100
Hello,
Reported as bug to the Debian bts.
Regards,
Frederic
----- Forwarded message from Peter Gervai <grin@xxxxxxxxxxxxxxx> -----
Date: Thu, 04 Jan 2001 01:04:38 +0100
From: Peter Gervai <grin@xxxxxxxxxxxxxxx>
Subject: Bug#81164: ethereal: segfault analysing a tcpdump file (dissect_socks)
To: submit@xxxxxxxxxxxxxxx
X-Mailer: bug 3.3.7
Package: ethereal
Version: 0.8.14-1
Severity: normal
Sig11 on a pcap dumpfile.
#0 dissect_socks (pd=0x838d710 "", offset=54, fd=0x84100e0, tree=0x0) at packet-socks.c:991
991 if (( hash_info->version == 4) || ( hash_info->version == 5)){
(gdb) bt
#0 dissect_socks (pd=0x838d710 "", offset=54, fd=0x84100e0, tree=0x0) at packet-socks.c:991
#1 0x814fbb5 in dissector_try_port (sub_dissectors=0x82b04c0, port=1080, tvb=0x834bb88, pinfo=0x82aba60, tree=0x0) at packet.c:1303
#2 0x80f813f in decode_tcp_ports (tvb=0x834bb58, offset=20, pinfo=0x82aba60, tree=0x0, src_port=1080, dst_port=25) at packet-tcp.c:417
#3 0x80f8886 in dissect_tcp (tvb=0x834bb58, pinfo=0x82aba60, tree=0x0) at packet-tcp.c:590
#4 0x814fbc8 in dissector_try_port (sub_dissectors=0x82ad948, port=6, tvb=0x834bb58, pinfo=0x82aba60, tree=0x0) at packet.c:1306
#5 0x80a89be in dissect_ip (tvb=0x834bb28, pinfo=0x82aba60, tree=0x0) at packet-ip.c:956
#6 0x814fbc8 in dissector_try_port (sub_dissectors=0x82ad7e8, port=2048, tvb=0x834bb28, pinfo=0x82aba60, tree=0x0) at packet.c:1306
#7 0x809d1f9 in ethertype (etype=2048, tvb=0x834baf8, offset_after_etype=14, pinfo=0x82aba60, tree=0x0, fh_tree=0x814e19b, item_id=377) at packet-ethertype.c:114
#8 0x809cfd9 in dissect_eth (tvb=0x834baf8, pinfo=0x82aba60, tree=0x0) at packet-eth.c:306
#9 0x809dae8 in dissect_frame (tvb=0x834baf8, pinfo=0x82aba60, tree=0x0) at packet-frame.c:135
#10 0x814f791 in dissect_packet (p_tvb=0x848f990, pseudo_header=0x834bf54, pd=0x838d710 "", fd=0x84100e0, tree=0x0) at packet.c:1041
#11 0x814dd02 in epan_dissect_new (pseudo_header=0x834bf54, data=0x838d710 "", fd=0x84100e0, tree=0x0) at epan.c:90
#12 0x811684b in add_packet_to_packet_list (fdata=0x84100e0, cf=0x829b7c0, pseudo_header=0x834bf54, buf=0x838d710 "", refilter=1) at file.c:646
#13 0x8116c0a in read_packet (cf=0x829b7c0, offset=1325504) at file.c:805
#14 0x811619f in read_cap_file (cf=0x829b7c0, err=0xbfffed84) at file.c:356
#15 0x8145cda in file_open_ok_cb (w=0x8343628, fs=0x82ffd80) at file_dlg.c:191
#16 0x1dc8d1 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
#17 0x20b06c in gtk_signal_remove_emission_hook () from /usr/lib/libgtk-1.2.so.0
#18 0x20a4d5 in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0
#19 0x2085b3 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#20 0x17abe8 in gtk_button_clicked () from /usr/lib/libgtk-1.2.so.0
#21 0x17c20d in gtk_button_get_relief () from /usr/lib/libgtk-1.2.so.0
#22 0x1dc8d1 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
#23 0x20a36f in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0
#24 0x2085b3 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#25 0x17ab28 in gtk_button_released () from /usr/lib/libgtk-1.2.so.0
#26 0x17bb78 in gtk_button_get_relief () from /usr/lib/libgtk-1.2.so.0
#27 0x1dc55b in gtk_marshal_BOOL__POINTER () from /usr/lib/libgtk-1.2.so.0
#28 0x20a513 in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0
#29 0x2085b3 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#30 0x23e96b in gtk_widget_event () from /usr/lib/libgtk-1.2.so.0
#31 0x1dc4c5 in gtk_propagate_event () from /usr/lib/libgtk-1.2.so.0
#32 0x1db6ee in gtk_main_do_event () from /usr/lib/libgtk-1.2.so.0
#33 0x288067 in gdk_wm_protocols_filter () from /usr/lib/libgdk-1.2.so.0
#34 0x2b82d9 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#35 0x2b88e3 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#36 0x2b8a7c in g_main_run () from /usr/lib/libglib-1.2.so.0
#37 0x1dafe7 in gtk_main () from /usr/lib/libgtk-1.2.so.0
#38 0x8135062 in main (argc=1, argv=0xbffffc44) at main.c:1370
#39 0x32be6c in __libc_start_main () from /lib/libc.so.6
(gdb) p conversation
$6 = (conversation_t *) 0x1
(gdb) p hash_info
$7 = (socks_hash_entry_t *) 0x0
969 /* new conversation create local data structure */
970 else {
971 hash_info = g_mem_chunk_alloc(socks_vals);
972 hash_info->start_done_row = G_MAXINT;
973 hash_info->state = None;
974 hash_info->port = -1;
...
986
987 if (check_col(fd, COL_PROTOCOL))
988 col_set_str(fd, COL_PROTOCOL, "Socks");
989
990 if (check_col(fd, COL_INFO)){
991 if (( hash_info->version == 4) || ( hash_info->version == 5)){
992 col_add_fstr(fd, COL_INFO, "Version: %d",
993 hash_info->version);
994 }
995 else /* unknown version display error */
Maybe someone forgot to check whether g_mem_chunk_alloc returned allocation failure?
(Just FYI the pcap listed by tcpdump:
15:41:13.492366 ip 62: a.example.com.1068 > b.example.com.smtp: S 17400728:17400728(0) win 8192 <mss 1460,nop,nop,sackOK> (DF)
15:41:13.493017 ip 62: b.example.com.smtp > a.example.com.1068: S 3218871106:3218871106(0) ack 17400729 win 32120 <mss 1460,nop,nop,sackOK>
15:41:13.497155 ip 60: a.example.com.1068 > b.example.com.smtp: . ack 1 win 8760 (DF)
15:41:15.113379 ip 128: b.example.com.smtp > a.example.com.1068: P 1:75(74) ack 1 win 32120
15:41:15.121608 ip 69: a.example.com.1068 > b.example.com.smtp: P 1:16(15) ack 75 win 8686 (DF)
^^^ segfaults here somewhere
15:41:15.122263 ip 54: b.example.com.smtp > a.example.com.1068: . ack 16 win 32120
and it simply isn't socks, maybe that's why the socks analyzer dies on it.)
-- System Information
Debian Release: woody
Kernel Version: Linux Yikes 2.2.17 #5 Wed Oct 11 13:56:51 CEST 2000 i686 unknown
Versions of the packages ethereal depends on:
ii libc6 2.2-6 GNU C Library: Shared libraries and Timezone
ii libglib1.2 1.2.8-1 The GLib library of C routines
ii libgtk1.2 1.2.8-2 The GIMP Toolkit set of widgets for X
ii libpcap0 0.5.2-2 System interface for user-level packet captu
ii xlibs 4.0.2-1 X Window System client libraries
ii zlib1g 1.1.3-11 compression library - runtime
----- End forwarded message -----
--
Frederic Peters <fpeters@xxxxxxxx> « Le travail a été ce que l'homme
Debian GNU/Linux : http://www.debian.org a trouvé de mieux pour ne rien
Gaby : http://gaby.netpedia.net faire de sa vie. » R. Vaneigem
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