Description of problem: $ ettercap-curses ettercap NG-0.7.3 copyright 2001-2004 ALoR & NaGA Ooops ! This shouldn't happen... Segmentation Fault... Please recompile in debug mode, reproduce the bug and send a bugreport I just select bridging sniffing. Version-Release number of selected component (if applicable): $ rpm -qa 'ettercap*' ettercap-common-0.7.3-38.fc15.x86_64 ettercap-gtk-0.7.3-38.fc15.x86_64 How reproducible: Always Steps to Reproduce: 1. Start ettercap-curses 2. Select "Bridged sniffing..." from Sniff menu.
I can't reproduce this. Do you get far enough to enter the interface names? In any case, can you install the debuginfo and include a backtrace?
ettercap-0.7.4-2.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/ettercap-0.7.4-2.fc15
ettercap-0.7.4-2.el6 has been submitted as an update for Fedora EPEL 6. https://admin.fedoraproject.org/updates/ettercap-0.7.4-2.el6
ettercap-0.7.4-2.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/ettercap-0.7.4-2.fc16
Package ettercap-0.7.4-2.el6: * should fix your issue, * was pushed to the Fedora EPEL 6 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=epel-testing ettercap-0.7.4-2.el6' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-EPEL-2012-0272/ettercap-0.7.4-2.el6 then log in and leave karma (feedback).
It is still reproducible. But what more interesting, it segfaults when run under regular user, under root it allow choose interface. >In any case, can you install the debuginfo and include a backtrace? Install debuginfo package is not a problem. But how I can obtain backtrace? On some reason abrt does not offer do that automatically.
ettercap-0.7.4-3.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/ettercap-0.7.4-3.fc15
ettercap-0.7.4-3.el6 has been submitted as an update for Fedora EPEL 6. https://admin.fedoraproject.org/updates/ettercap-0.7.4-3.el6
ettercap-0.7.4-3.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/ettercap-0.7.4-3.fc16
In gdb, after the segfault, type backtrace.
It still reproduced in 0.7.4-3 version too. Reopening. (In reply to comment #10) > In gdb, after the segfault, type backtrace. Please tell more, how I can accomplish it? When I start ettercap-curses under gdb I does not seen any interactive interface to select item from menu and reproduce crash.
Try: gdb ettercap-curses (gdb) run -C
Ok, that works: Program received signal SIGSEGV, Segmentation fault. 0x0000003e958950ef in __strncpy_sse2_unaligned () from /lib64/libc.so.6 Missing separate debuginfos, use: debuginfo-install atk-2.2.0-2.fc16.x86_64 cairo-1.10.2-4.fc16.x86_64 expat-2.0.1-11.fc15.x86_64 fontconfig-2.8.0-4.fc16.x86_64 freetype-2.4.6-4.fc16.x86_64 gdk-pixbuf2-2.24.1-1.fc16.x86_64 glib2-2.30.2-1.fc16.x86_64 glibc-2.14.90-24.fc16.4.x86_64 gtk2-2.24.8-3.fc16.x86_64 keyutils-libs-1.5.5-1.fc17.x86_64 krb5-libs-1.10-0.fc17.alpha2.1.x86_64 libX11-1.4.3-1.fc16.x86_64 libXau-1.0.6-2.fc15.x86_64 libXcomposite-0.4.3-2.fc15.x86_64 libXcursor-1.1.11-3.fc15.x86_64 libXdamage-1.1.3-2.fc15.x86_64 libXext-1.3.0-1.fc16.x86_64 libXfixes-5.0-1.fc16.x86_64 libXi-1.4.5-1.fc16.x86_64 libXinerama-1.1.1-2.fc15.x86_64 libXrandr-1.3.1-2.fc15.x86_64 libXrender-0.9.6-2.fc15.x86_64 libcom_err-1.42-1.fc17.x86_64 libffi-3.0.10-1.fc17.x86_64 libgcc-4.6.2-1.fc16.x86_64 libnet-1.1.5-2.fc15.x86_64 libpcap-1.1.1-4.fc16.x86_64 libpng-1.2.46-1.fc16.x86_64 libselinux-2.1.9-1.fc17.x86_64 libtool-ltdl-2.4-7.fc16.x86_64 libxcb-1.7-3.fc16.x86_64 ncurses-libs-5.9-2.20110716.fc16.x86_64 openssl-1.0.0g-1.fc16.x86_64 pango-1.29.4-1.fc16.x86_64 pcre-8.12-7.fc16.x86_64 pixman-0.22.2-1.fc16.x86_64 zlib-1.2.5-6.fc16.x86_64 (gdb) backtrace #0 0x0000003e958950ef in __strncpy_sse2_unaligned () from /lib64/libc.so.6 #1 0x0000000000443f6e in curses_bridged_sniff () at /usr/include/bits/string3.h:121 #2 0x000000000044ef85 in wdg_menu_driver (wo=0x8bd120, key=<optimized out>, mouse=<optimized out>) at wdg_menu.c:494 #3 0x000000000044f116 in wdg_menu_get_msg (wo=0x8bd120, key=13, mouse=0x7fffffffd040) at wdg_menu.c:284 #4 0x00000000004491c3 in wdg_dispatch_msg (mouse=0x7fffffffd040, key=13) at wdg.c:447 #5 wdg_events_handler (exit_key=<optimized out>) at wdg.c:327 #6 0x00000000004439b1 in curses_setup () at ec_curses.c:446 #7 0x000000000042c449 in ui_init () at ec_ui.c:67 #8 0x0000000000412cb5 in main (argc=<optimized out>, argv=<optimized out>) at ec_main.c:101 (gdb)
Can you run the debuginfo-install line it requests, and re-run?
ettercap-0.7.4-3.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.
ettercap-0.7.4-3.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
(In reply to comment #14) > Can you run the debuginfo-install line it requests, and re-run? I do not understand for what. Do you see any call of functions from these libraries in trace?? But ok, I did it. Program received signal SIGSEGV, Segmentation fault. __strncpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S:297 297 │Bridged movdqung(%rsi), %xmm1 Missing separate debuginfos, use: debuginfo-install keyutils-libs-1.5.5-1.fc17.x86_64 krb5-libs-1.10-0.fc17.alpha2.1.x86_64 libcom_err-1.42-1.fc17.x86_64 libffi-3.0.10-1.fc17.x86_64 libselinux-2.1.9-1.fc17.x86_64 (gdb) bt───────────────────────┘ #0 __strncpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S:297 #1 0x0000000000443f6e in curses_bridged_sniff () at /usr/include/bits/string3.h:121 #2 0x000000000044ef85 in wdg_menu_driver (wo=0x8bd120, key=<optimized out>, mouse=<optimized out>) at wdg_menu.c:494 #3 0x000000000044f116 in wdg_menu_get_msg (wo=0x8bd120, key=13, mouse=0x7fffffffd010) at wdg_menu.c:284 #4 0x00000000004491c3 in wdg_dispatch_msg (mouse=0x7fffffffd010, key=13) at wdg.c:447 #5 wdg_events_handler (exit_key=<optimized out>) at wdg.c:327 #6 0x00000000004439b1 in curses_setup () at ec_curses.c:446 #7 0x000000000042c449 in ui_init () at ec_ui.c:67 #8 0x0000000000412cb5 in main (argc=<optimized out>, argv=<optimized out>) at ec_main.c:101 # LANG=C debuginfo-install -d0 keyutils-libs-1.5.5-1.fc17.x86_64 krb5-libs-1.10-0.fc17.alpha2.1.x86_64 libcom_err-1.42-1.fc17.x86_64 libffi-3.0.10-1.fc17.x86_64 libselinux-2.1.9-1.fc17.x86_64 Could not find debuginfo for main pkg: keyutils-libs-1.5.5-1.fc17.x86_64 Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo for main pkg: krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo pkg for dependency package libcom_err-1.42-1.fc17.x86_64 Package openssl-debuginfo-1.0.0g-1.fc16.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package keyutils-libs-1.5.5-1.fc17.x86_64 Could not find debuginfo pkg for dependency package keyutils-libs-1.5.5-1.fc17.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Could not find debuginfo pkg for dependency package krb5-libs-1.10-0.fc17.alpha2.1.x86_64 Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo pkg for dependency package libselinux-2.1.9-1.fc17.x86_64 Could not find debuginfo for main pkg: libcom_err-1.42-1.fc17.x86_64 Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo for main pkg: libffi-3.0.10-1.fc17.x86_64 Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo for main pkg: libselinux-2.1.9-1.fc17.x86_64 Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Package glibc-debuginfo-2.14.90-24.fc16.4.x86_64 already installed and latest version Could not find debuginfo pkg for dependency package libselinux-2.1.9-1.fc17.x86_64 No debuginfo packages available to install
Why is it trying to pull in f17 RPMs? I thought this was for f16.
ettercap-0.7.4-3.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.
I pull RPMS suggested by gdb.
Ok, and what does that backtrace look like?
https://bugzilla.redhat.com/show_bug.cgi?id=783675#c17
Could you possibly downgrade libselinux to the f16 version and see if that makes a difference? Also, are you getting any AVCs from this crash?
(In reply to comment #23) > Could you possibly downgrade libselinux to the f16 version and see if that > makes a difference? Also, are you getting any AVCs from this crash? I have disabled SELinux on that machine - it is my work notebook. But I have tried downgrade it: # rpm -q libselinux libselinux-2.1.6-6.fc16.x86_64 libselinux-2.1.6-6.fc16.i686 It have no differences I think: File Sniff Options Help NG-0.7.4_git Program received signal SIGSEGV, Segmentation fault. __strncpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S:297 297 │Bridged movdqung(%rsi), %xmm1 Missing separate debuginfos, use: debuginfo-install keyutils-libs-1.5.5-1.fc17.x86_64 krb5-libs-1.10-0.fc17.alpha2.1.x86_64 libcom_err-1.42-1.fc17.x86_64 libffi-3.0.10-1.fc17.x86_64 libselinux-2.1.6-6.fc16.x86_64 (gdb) backtrace────────────────┘ #0 __strncpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S:297 #1 0x0000000000443f6e in curses_bridged_sniff () at /usr/include/bits/string3.h:121 #2 0x000000000044ef85 in wdg_menu_driver (wo=0x8bd120, key=<optimized out>, mouse=<optimized out>) at wdg_menu.c:494 #3 0x000000000044f116 in wdg_menu_get_msg (wo=0x8bd120, key=13, mouse=0x7fffffffcfc0) at wdg_menu.c:284 #4 0x00000000004491c3 in wdg_dispatch_msg (mouse=0x7fffffffcfc0, key=13) at wdg.c:447 #5 wdg_events_handler (exit_key=<optimized out>) at wdg.c:327 #6 0x00000000004439b1 in curses_setup () at ec_curses.c:446 #7 0x000000000042c449 in ui_init () at ec_ui.c:67 #8 0x0000000000412cb5 in main (argc=<optimized out>, argv=<optimized out>) at ec_main.c:101 (gdb)
Can you try downgrading the other fc17 rpms I see there, keyutils-libs, krb5-libs, libcom_eff, libiffi?
(In reply to comment #25) > Can you try downgrading the other fc17 rpms I see there, keyutils-libs, > krb5-libs, libcom_eff, libiffi? Yes, I can. But do you see any troubles in that libraries?? # LANG=C rpm -q keyutils-libs krb5-libs libcom_eff libiffi krb5-workstation keyutils-libs-1.5.2-1.fc16.x86_64 keyutils-libs-1.5.2-1.fc16.i686 krb5-libs-1.9.2-6.fc16.x86_64 krb5-libs-1.9.2-6.fc16.i686 package libcom_eff is not installed package libiffi is not installed krb5-workstation-1.9.2-6.fc16.x86_64 File Sniff Options Help NG-0.7.4_git Program received signal SIGSEGV, Segmentation fault. __strncpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S:297 297 │Bridged movdqung(%rsi), %xmm1 Missing separate debuginfos, use: debuginfo-install keyutils-libs-1.5.2-1.fc16.x86_64 krb5-libs-1.9.2-6.fc16.x86_64 libcom_err-1.42-1.fc17.x86_64 libffi-3.0.10-1.fc17.x86_64 libselinux-2.1.6-6.fc16.x86_64 (gdb) backtrace────────────────┘ #0 __strncpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S:297 #1 0x0000000000443f6e in curses_bridged_sniff () at /usr/include/bits/string3.h:121 #2 0x000000000044ef85 in wdg_menu_driver (wo=0x8bd120, key=<optimized out>, mouse=<optimized out>) at wdg_menu.c:494 #3 0x000000000044f116 in wdg_menu_get_msg (wo=0x8bd120, key=13, mouse=0x7fffffffd050) at wdg_menu.c:284 #4 0x00000000004491c3 in wdg_dispatch_msg (mouse=0x7fffffffd050, key=13) at wdg.c:447 #5 wdg_events_handler (exit_key=<optimized out>) at wdg.c:327 #6 0x00000000004439b1 in curses_setup () at ec_curses.c:446 #7 0x000000000042c449 in ui_init () at ec_ui.c:67 #8 0x0000000000412cb5 in main (argc=<optimized out>, argv=<optimized out>) at ec_main.c:101 (gdb)
Not so far, but I can't reproduce the crash on an F-16 machine, so I'm trying to determine if the fault is in ettercap, some library it's using, a network driver in the kernel, or something else. Keep removing fc17 packages and installing debuginfo packages until it doesn't say it's missing any debuginfos, and post that backtrace. Unless it stop crashing. If that happens, post a list of what you downgraded from fc17. :)
This is amazing! I just test on f16-test.scrye.com from Package Maintainers Test Machine resources with fresh install ettercap and it reproduced there.
I tried on a fresh install on a VM, and I can only reproduce the segfault if I don't run as root. You are running ettercap as root, right? From the man page: PRIVILEGES DROPPING ettercap needs root privileges to open the Link Layer sockets. After the initialization phase, the root privs are not needed anymore, so ettercap drops them to UID = 65535 (nobody). Since ettercap has to write (create) log files, it must be executed in a directory with the right permissions (e.g. /tmp/). If you want to drop privs to a different uid, you can export the environment variable EC_UID with the value of the uid you want to drop the privs to (e.g. export EC_UID=500) or set the correct parameter in the etter.conf file.
(In reply to comment #6) > It is still reproducible. > But what more interesting, it segfaults when run under regular user, under root > it allow choose interface. In any case segfault is not processing requirements to run!
I could patch it to exit gracefully if not run as root prior to the interface coming up, would that suffice?
I think so.
Ugh. I can do it simply for -C, but given the existence of -G, I really should just wrap it in consolehelper.
It looks like the best way to get consolehelper to work is to drop the alternatives setup. Any objection?
I think it should reported and fixed upstream. Other such as script wrappers is still just (ugly) workarounds.
https://sourceforge.net/tracker/?func=detail&aid=3502737&group_id=17435&atid=117435
I fixed it here http://ettercap.git.sourceforge.net/git/gitweb.cgi?p=ettercap/ettercap;a=blobdiff;f=src/interfaces/curses/ec_curses.c;h=aeb0f16b718d2c32b954dd0f1eeb8c65791ed1fa;hp=6637ae92a8bcf780241bec1ae687b24128f501ea;hb=805852a;hpb=cb4e01e188415fb6a6e6127cf920339b653f275b this will be automatically fixed in 0.7.5
Cherry picked on github (now we develop here) https://github.com/Ettercap/ettercap/commit/e302bbd0040f4c480c1efbfca223d74ae99e75e6
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