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Cause: Malformed security policy has been supplied to the oscap scanner. This policy, in form of XCCDF checklist contained dangling selector element. The selector element did not resolve to a valid target.
Consequence: The oscap scanner has crashed.
Fix: The oscap scanner has been fixed. The oscap scanner now notifies user whenever dangling selector is encountered.
Result: The scan of malformed security policy now proceeds. The oscap scanner generates warnings for user.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHEA-2015-2356.html
Description of problem: - openscap-scanner segfault Version-Release number of selected component (if applicable): - openscap-scanner-1.1.1-3.el7 How reproducible: - intermittent Steps to Reproduce: oscap xccdf eval --profile test /home/schachingerx/scap-security-guide/RHEL/7/output/ssg-rhel7-xccdf-copy.xml ...results in this (majority of output omitted) : Title Set SSH Idle Timeout Interval Rule sshd_set_idle_timeout Ident CCE-26611-4 Result pass Segmentation fault (core dumped) [root@schachinger Documents]# Sometimes I get an abrt notification but sometimes I don't. I can correct this error by commenting out the following lines under the "test" profile in my XCCDF XML file (attached to case) <select idref="account_disable_post_pw_expiration" selected="false"/> <select idref="accounts_passwords_pam_faillock_deny" selected="false"/> <refine-value idref="var_password_pam_unix_remember" selector="4"/> <refine-value idref="var_account_disable_post_pw_expiration" selector="90"/> <refine-value idref="var_accounts_passwords_pam_faillock_deny" selector="6"/> <refine-value idref="var_password_pam_minlen" selector="7"/> Actual results: - segfault Expected results: Additional info: time: Fri 08 May 2015 01:26:06 PM EDT cmdline: /usr/bin/oscap xccdf eval --results /tmp/tmp_Gtktx --profile xccdf_org.ssgproject.content_profile_pci-dss /home/schachingerx/scap-security-guide/RHEL/7/output/ssg-rhel7-xccdf-1.2.xml uid: 0 (root) abrt_version: 2.1.11 event_log: executable: /usr/bin/oscap kernel: 3.10.0-229.1.2.el7.x86_64 last_occurrence: 1431440344 pid: 31051 pkg_arch: x86_64 pkg_epoch: 0 pkg_name: openscap-scanner pkg_release: 3.el7 pkg_version: 1.1.1 pwd: /home/schachingerx/scap-security-guide/RHEL/7/output runlevel: N 5 username: root dso_list: Text file, 4245 bytes maps: Text file, 21525 bytes sosreport.tar.xz: Binary file, 6965096 bytes var_log_messages: Text file, 5275 bytes cgroup: :10:hugetlb:/ :9:perf_event:/ :8:blkio:/ :7:net_cls:/ :6:freezer:/ :5:devices:/ :4:memory:/ :3:cpuacct,cpu:/ :2:cpuset:/ :1:name=systemd:/user.slice/user-1000.slice/session-1.scope comment: :by running the following command to test oscap: : :# oscap xccdf eval --profile test /home/schachingerx/scap-security-guide/RHEL/7/output/ssg-rhel7-xccdf-copy.xml : :Which resulted in... : :Title Set SSH Idle Timeout Interval :Rule sshd_set_idle_timeout :Ident CCE-26611-4 :Result fail : :Segmentation fault (core dumped) core_backtrace: :{ "signal": 11 :, "executable": "/usr/bin/oscap" :, "stacktrace": : [ { "crash_thread": true : , "frames": : [ { "address": 140085551379072 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 635520 : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551439617 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 696065 : , "function_name": "xccdf_policy_add_final_setvalue" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551439779 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 696227 : , "function_name": "xccdf_policy_add_final_setvalues" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551439843 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 696291 : , "function_name": "xccdf_policy_add_final_setvalues" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551439843 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 696291 : , "function_name": "xccdf_policy_add_final_setvalues" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551440003 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 696451 : , "function_name": "xccdf_policy_add_final_setvalues" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551440397 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 696845 : , "function_name": "xccdf_policy_evaluate" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085551422954 : , "build_id": "ee8a0b5fb226674c20c43464882468eb9cc0b335" : , "build_id_offset": 679402 : , "function_name": "xccdf_session_evaluate" : , "file_name": "/lib64/libopenscap.so.8" : } : , { "address": 140085556101648 : , "build_id": "4a6d08dcd4c7a9acef99977e7d2b9ea98e68c880" : , "build_id_offset": 57872 : , "function_name": "app_evaluate_xccdf" : , "file_name": "/usr/bin/oscap" : } : , { "address": 140085556083817 : , "build_id": "4a6d08dcd4c7a9acef99977e7d2b9ea98e68c880" : , "build_id_offset": 40041 : , "function_name": "oscap_module_process" : , "file_name": "/usr/bin/oscap" : } : , { "address": 140085556079025 : , "build_id": "4a6d08dcd4c7a9acef99977e7d2b9ea98e68c880" : , "build_id_offset": 35249 : , "function_name": "main" : , "file_name": "/usr/bin/oscap" : } ] : } ] :} environ: :XDG_VTNR=1 :XDG_SESSION_ID=1 :HOSTNAME=schachinger :SHELL=/bin/bash :TERM=xterm-256color :HISTSIZE=1000 :USER=root :LS_COLORS=rs=0:di=38;5;27:ln=38;5;51:mh=44;38;5;15:pi=40;38;5;11:so=38;5;13:do=38;5;5:bd=48;5;232;38;5;11:cd=48;5;232;38;5;3:or=48;5;232;38;5;9:mi=05;48;5;232;38;5;15:su=48;5;196;38;5;15:sg=48;5;11;38;5;16:ca=48;5;196;38;5;226:tw=48;5;10;38;5;16:ow=48;5;10;38;5;21:st=48;5;21;38;5;15:ex=38;5;34:*.tar=38;5;9:*.tgz=38;5;9:*.arc=38;5;9:*.arj=38;5;9:*.taz=38;5;9:*.lha=38;5;9:*.lz4=38;5;9:*.lzh=38;5;9:*.lzma=38;5;9:*.tlz=38;5;9:*.txz=38;5;9:*.tzo=38;5;9:*.t7z=38;5;9:*.zip=38;5;9:*.z=38;5;9:*.Z=38;5;9:*.dz=38;5;9:*.gz=38;5;9:*.lrz=38;5;9:*.lz=38;5;9:*.lzo=38;5;9:*.xz=38;5;9:*.bz2=38;5;9:*.bz=38;5;9:*.tbz=38;5;9:*.tbz2=38;5;9:*.tz=38;5;9:*.deb=38;5;9:*.rpm=38;5;9:*.jar=38;5;9:*.war=38;5;9:*.ear=38;5;9:*.sar=38;5;9:*.rar=38;5;9:*.alz=38;5;9:*.ace=38;5;9:*.zoo=38;5;9:*.cpio=38;5;9:*.7z=38;5;9:*.rz=38;5;9:*.cab=38;5;9:*.jpg=38;5;13:*.jpeg=38;5;13:*.gif=38;5;13:*.bmp=38;5;13:*.pbm=38;5;13:*.pgm=38;5;13:*.ppm=38;5;13:*.tga=38;5;13:*.xbm=38;5;13:*.xpm=38;5;13:*.tif=38;5;13:*.tiff=38;5;13:*.png=38;5;13:*.svg=38;5;13:*.svgz=38;5;13:*.mng=38;5;13:*.pcx=38;5;13:*.mov=38;5;13:*.mpg=38;5;13:*.mpeg=38;5;13:*.m2v=38;5;13:*.mkv=38;5;13:*.webm=38;5;13:*.ogm=38;5;13:*.mp4=38;5;13:*.m4v=38;5;13:*.mp4v=38;5;13:*.vob=38;5;13:*.qt=38;5;13:*.nuv=38;5;13:*.wmv=38;5;13:*.asf=38;5;13:*.rm=38;5;13:*.rmvb=38;5;13:*.flc=38;5;13:*.avi=38;5;13:*.fli=38;5;13:*.flv=38;5;13:*.gl=38;5;13:*.dl=38;5;13:*.xcf=38;5;13:*.xwd=38;5;13:*.yuv=38;5;13:*.cgm=38;5;13:*.emf=38;5;13:*.axv=38;5;13:*.anx=38;5;13:*.ogv=38;5;13:*.ogx=38;5;13:*.aac=38;5;45:*.au=38;5;45:*.flac=38;5;45:*.mid=38;5;45:*.midi=38;5;45:*.mka=38;5;45:*.mp3=38;5;45:*.mpc=38;5;45:*.ogg=38;5;45:*.ra=38;5;45:*.wav=38;5;45:*.axa=38;5;45:*.oga=38;5;45:*.spx=38;5;45:*.xspf=38;5;45: :SUDO_USER=schachingerx :SUDO_UID=1000 :USERNAME=schachingerx :PATH=/sbin:/bin:/usr/sbin:/usr/bin :MAIL=/var/spool/mail/schachingerx :PWD=/home/schachingerx/scap-security-guide/RHEL/7/output :LANG=en_US.utf8 :SHLVL=1 :XDG_SEAT=seat0 :SUDO_COMMAND=/bin/su :HOME=/root :LOGNAME=root :'LESSOPEN=||/usr/bin/lesspipe.sh %s' :SUDO_GID=1000 :DISPLAY=:0 :XAUTHORITY=/root/.xauthgSAekA :COLORTERM=gnome-terminal :_=/sbin/osad limits: :Limit Soft Limit Hard Limit Units :Max cpu time unlimited unlimited seconds :Max file size unlimited unlimited bytes :Max data size unlimited unlimited bytes :Max stack size 8388608 unlimited bytes :Max core file size 0 unlimited bytes :Max resident set unlimited unlimited bytes :Max processes 62180 62180 processes :Max open files 1024 4096 files :Max locked memory 65536 65536 bytes :Max address space unlimited unlimited bytes :Max file locks unlimited unlimited locks :Max pending signals 62180 62180 signals :Max msgqueue size 819200 819200 bytes :Max nice priority 0 0 :Max realtime priority 0 0 :Max realtime timeout unlimited unlimited us machineid: :systemd=163994d5f9b7442da0cab1d434ac4f56 :sosreport_uploader-dmidecode=69d4451b43af22d7379a159a43a7e33d82395b3a868382678892394d8652a247 open_fds: :0:pipe:[320538] :pos: 0 :flags: 00 :1:/dev/null :pos: 0 :flags: 0100000 :2:pipe:[320539] :pos: 0 :flags: 01 :3:socket:[168068] :pos: 0 :flags: 02 :4:/dev/null :pos: 0 :flags: 0100001 :5:socket:[316741] :pos: 0 :flags: 02000002 :6:socket:[316742] :pos: 0 :flags: 02 :7:socket:[317925] :pos: 0 :flags: 02 :8:socket:[317927] :pos: 0 :flags: 02 :9:socket:[318509] :pos: 0 :flags: 02 :10:socket:[318511] :pos: 0 :flags: 02 :11:socket:[318513] :pos: 0 :flags: 02 :12:socket:[315037] :pos: 0 :flags: 02 :13:socket:[315039] :pos: 0 :flags: 02 :14:socket:[315041] :pos: 0 :flags: 02 :15:socket:[318515] :pos: 0 :flags: 02 proc_pid_status: :Name: oscap :State: S (sleeping) :Tgid: 31051 :Ngid: 0 :Pid: 31051 :PPid: 31050 :TracerPid: 0 :Uid: 0 0 0 0 :Gid: 0 0 0 0 :FDSize: 64 :Groups: 0 :VmPeak: 144144 kB :VmSize: 130904 kB :VmLck: 0 kB :VmPin: 0 kB :VmHWM: 30792 kB :VmRSS: 17812 kB :VmData: 13100 kB :VmStk: 136 kB :VmExe: 88 kB :VmLib: 16480 kB :VmPTE: 256 kB :VmSwap: 0 kB :Threads: 1 :SigQ: 0/62180 :SigPnd: 0000000000000000 :ShdPnd: 0000000000000000 :SigBlk: 0000000000000000 :SigIgn: 0000000001001000 :SigCgt: 0000000180000000 :CapInh: 0000000000000000 :CapPrm: 0000001fffffffff :CapEff: 0000001fffffffff :CapBnd: 0000001fffffffff :Seccomp: 0 :Cpus_allowed: ff :Cpus_allowed_list: 0-7 :Mems_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 :Mems_allowed_list: 0 :voluntary_ctxt_switches: 234 :nonvoluntary_ctxt_switches: 1 reported_to: :uReport: BTHASH=19926e0916ea0315ec2c876a30ac326eddfdfb5b :ABRT Server: URL=https://api.access.redhat.com/rs/telemetry/abrt/reports/bthash/19926e0916ea0315ec2c876a30ac326eddfdfb5b $ file coredump coredump: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, from '/usr/bin/oscap xccdf eval --results /tmp/tmp_Gtktx --profile xccdf_org.ssgproje' -bash-4.2$ gdb /usr/bin/oscap coredump GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-64.el7 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/bin/oscap...Reading symbols from /usr/lib/debug/usr/bin/oscap.debug...done. done. [New LWP 31051] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/bin/oscap xccdf eval --results /tmp/tmp_Gtktx --profile xccdf_org.ssgproje'. Program terminated with signal 11, Segmentation fault. #0 xccdf_value_instance_get_value (item=0x0) at value.c:437 437 OSCAP_GETTER(const char*, xccdf_value_instance, value) (gdb) bt #0 xccdf_value_instance_get_value (item=0x0) at value.c:437 #1 0x00007f6835881eac in xccdf_policy_get_value_of_item (policy=policy@entry=0x7f68371a1b10, item=<optimized out>) at xccdf_policy.c:2426 #2 0x00007f6835881f01 in xccdf_policy_add_final_setvalue (policy=policy@entry=0x7f68371a1b10, value=0x7f6836f8bbb0, result=result@entry=0x7f6837850d80) at xccdf_policy.c:2193 #3 0x00007f6835881fa3 in xccdf_policy_add_final_setvalues (policy=policy@entry=0x7f68371a1b10, item=0x7f6836f8a040, result=result@entry=0x7f6837850d80) at xccdf_policy.c:2213 #4 0x00007f6835881fe3 in xccdf_policy_add_final_setvalues (policy=policy@entry=0x7f68371a1b10, item=0x7f6836f1f280, result=result@entry=0x7f6837850d80) at xccdf_policy.c:2220 #5 0x00007f6835881fe3 in xccdf_policy_add_final_setvalues (policy=policy@entry=0x7f68371a1b10, item=0x7f6836e57630, result=result@entry=0x7f6837850d80) at xccdf_policy.c:2220 #6 0x00007f6835882083 in xccdf_policy_add_final_setvalues (policy=policy@entry=0x7f68371a1b10, item=0x7f6836e186c0, result=result@entry=0x7f6837850d80) at xccdf_policy.c:2235 #7 0x00007f683588220d in xccdf_policy_evaluate (policy=policy@entry=0x7f68371a1b10) at xccdf_policy.c:2318 #8 0x00007f683587ddea in xccdf_session_evaluate (session=session@entry=0x7f6836d00b60) at xccdf_session.c:906 #9 0x00007f6835cf4210 in app_evaluate_xccdf (action=0x7fff67b1c800) at oscap-xccdf.c:490 #10 0x00007f6835cefc69 in oscap_module_call (action=0x7fff67b1c800) at oscap-tool.c:261 #11 oscap_module_process (module=0x7f6835efdb60 <XCCDF_EVAL>, module@entry=0x7f6835efd0e0 <OSCAP_ROOT_MODULE>, argc=argc@entry=8, argv=argv@entry=0x7fff67b1ca88) at oscap-tool.c:346 #12 0x00007f6835cee9b1 in main (argc=8, argv=0x7fff67b1ca88) at oscap.c:79 (gdb) info thr Id Target Id Frame * 1 Thread 0x7f6835cb9840 (LWP 31051) xccdf_value_instance_get_value (item=0x0) at value.c:437 (gdb)