New submission from BeginVuln:
OS Version : Ubuntu 16.04 LTS
Python download link :
https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tar.xz
Python version : 3.6.0
Normal build cmd :
./configure
make
Asan build cmd:
export CC="/usr/bin/clang -fsanitize=address
export CXX="/usr/bin/clang++ -fsanitize=address
./confiugre
make
GDB with exploitable:
To enable execution of this file add
add-auto-load-safe-path /home/test/check/PythonGDB/python-gdb.py
line to your configuration file "/home/test/.gdbinit".
To completely disable this security protection add
set auto-load safe-path /
line to your configuration file "/home/test/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual. E.g., run from the shell:
info "(gdb)Auto-loading safe path"
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
strlen () at ../sysdeps/x86_64/strlen.S:106
Description: Access violation near NULL on source operand
Short description: SourceAvNearNull (16/22)
Hash: 887855ab5f56908afba8d62b6a25a6db.02c83d5748e9f8196679750a04737f93
Exploitability Classification: PROBABLY_NOT_EXPLOITABLE
Explanation: The target crashed on an access violation at an address matching
the source operand of the current instruction. This likely indicates a read
access violation, which may mean the application crashed on a simple NULL
dereference to data structure that has no immediate effect on control of the
processor.
Other tags: AccessViolation (21/22)
ASAN:
sEASAN:DEADLYSIGNAL
=================================================================
==18621==ERROR: AddressSanitizer: SEGV on unknown address 0x0000000028cb (pc
0x7f1572e57d16 bp 0x7ffeaf5703d0 sp 0x7ffeaf56fb68 T0)
#0 0x7f1572e57d15 in strlen
/build/glibc-GKVZIf/glibc-2.23/string/../sysdeps/x86_64/strlen.S:76
#1 0x7f1572e57d15 in ?? ??:0
#2 0x44ffac in __interceptor_strlen.part.45 asan_interceptors.cc.o:?
#3 0x44ffac in ?? ??:0
#4 0x7f156c4cdf5c in string_at
/home/test/check/PythonASAN/Modules/_ctypes/_ctypes.c:5226
#5 0x7f156c4cdf5c in ?? ??:0
#6 0x7f156c2ade3f in ffi_call_unix64 ??:?
#7 0x7f156c2ade3f in ?? ??:0
#8 0x7f156c2ad8aa in ffi_call ??:?
#9 0x7f156c2ad8aa in ?? ??:0
#10 0x7f156c4db311 in _call_function_pointer
/home/test/check/PythonASAN/Modules/_ctypes/callproc.c:809
#11 0x7f156c4db311 in _ctypes_callproc
/home/test/check/PythonASAN/Modules/_ctypes/callproc.c:1147
#12 0x7f156c4db311 in ?? ??:0
#13 0x7f156c4ca199 in PyCFuncPtr_call
/home/test/check/PythonASAN/Modules/_ctypes/_ctypes.c:3870
#14 0x7f156c4ca199 in ?? ??:0
#15 0x5745f0 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2316
#16 0x5745f0 in ?? ??:0
#17 0x7a7429 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4812
#18 0x7a7429 in ?? ??:0
#19 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#20 0x7995cc in ?? ??:0
#21 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#22 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#23 0x7a9847 in ?? ??:0
#24 0x7ab648 in fast_function
/home/test/check/PythonASAN/Python/ceval.c:4929 (discriminator 1)
#25 0x7ab648 in ?? ??:0
#26 0x7a76f2 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4809
#27 0x7a76f2 in ?? ??:0
#28 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#29 0x7995cc in ?? ??:0
#30 0x7ab4cb in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#31 0x7ab4cb in _PyFunction_FastCall
/home/test/check/PythonASAN/Python/ceval.c:4870
#32 0x7ab4cb in fast_function
/home/test/check/PythonASAN/Python/ceval.c:4905
#33 0x7ab4cb in ?? ??:0
#34 0x7a76f2 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4809
#35 0x7a76f2 in ?? ??:0
#36 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#37 0x7995cc in ?? ??:0
#38 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#39 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#40 0x7a9847 in ?? ??:0
#41 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#42 0x7ac2ea in ?? ??:0
#43 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#44 0x574668 in ?? ??:0
#45 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#46 0x5749fa in ?? ??:0
#47 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#48 0x573e9b in ?? ??:0
#49 0x793369 in do_call_core /home/test/check/PythonASAN/Python/ceval.c:5057
#50 0x793369 in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3357
#51 0x793369 in ?? ??:0
#52 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#53 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#54 0x7a9847 in ?? ??:0
#55 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#56 0x7ac2ea in ?? ??:0
#57 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#58 0x574668 in ?? ??:0
#59 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#60 0x5749fa in ?? ??:0
#61 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#62 0x573e9b in ?? ??:0
#63 0x66efe4 in slot_tp_call
/home/test/check/PythonASAN/Objects/typeobject.c:6167
#64 0x66efe4 in ?? ??:0
#65 0x5745f0 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2316
#66 0x5745f0 in ?? ??:0
#67 0x7a7429 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4812
#68 0x7a7429 in ?? ??:0
#69 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#70 0x7995cc in ?? ??:0
#71 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#72 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#73 0x7a9847 in ?? ??:0
#74 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#75 0x7ac2ea in ?? ??:0
#76 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#77 0x574668 in ?? ??:0
#78 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#79 0x5749fa in ?? ??:0
#80 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#81 0x573e9b in ?? ??:0
#82 0x793369 in do_call_core /home/test/check/PythonASAN/Python/ceval.c:5057
#83 0x793369 in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3357
#84 0x793369 in ?? ??:0
#85 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#86 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#87 0x7a9847 in ?? ??:0
#88 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#89 0x7ac2ea in ?? ??:0
#90 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#91 0x574668 in ?? ??:0
#92 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#93 0x5749fa in ?? ??:0
#94 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#95 0x573e9b in ?? ??:0
#96 0x66efe4 in slot_tp_call
/home/test/check/PythonASAN/Objects/typeobject.c:6167
#97 0x66efe4 in ?? ??:0
#98 0x5745f0 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2316
#99 0x5745f0 in ?? ??:0
#100 0x7a7429 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4812
#101 0x7a7429 in ?? ??:0
#102 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#103 0x7995cc in ?? ??:0
#104 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#105 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#106 0x7a9847 in ?? ??:0
#107 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#108 0x7ac2ea in ?? ??:0
#109 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#110 0x574668 in ?? ??:0
#111 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#112 0x5749fa in ?? ??:0
#113 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#114 0x573e9b in ?? ??:0
#115 0x793369 in do_call_core
/home/test/check/PythonASAN/Python/ceval.c:5057
#116 0x793369 in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3357
#117 0x793369 in ?? ??:0
#118 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#119 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#120 0x7a9847 in ?? ??:0
#121 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#122 0x7ac2ea in ?? ??:0
#123 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#124 0x574668 in ?? ??:0
#125 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#126 0x5749fa in ?? ??:0
#127 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#128 0x573e9b in ?? ??:0
#129 0x66efe4 in slot_tp_call
/home/test/check/PythonASAN/Objects/typeobject.c:6167
#130 0x66efe4 in ?? ??:0
#131 0x5745f0 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2316
#132 0x5745f0 in ?? ??:0
#133 0x7a7429 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4812
#134 0x7a7429 in ?? ??:0
#135 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#136 0x7995cc in ?? ??:0
#137 0x7ab4cb in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#138 0x7ab4cb in _PyFunction_FastCall
/home/test/check/PythonASAN/Python/ceval.c:4870
#139 0x7ab4cb in fast_function
/home/test/check/PythonASAN/Python/ceval.c:4905
#140 0x7ab4cb in ?? ??:0
#141 0x7a76f2 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4809
#142 0x7a76f2 in ?? ??:0
#143 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#144 0x7995cc in ?? ??:0
#145 0x7ab4cb in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#146 0x7ab4cb in _PyFunction_FastCall
/home/test/check/PythonASAN/Python/ceval.c:4870
#147 0x7ab4cb in fast_function
/home/test/check/PythonASAN/Python/ceval.c:4905
#148 0x7ab4cb in ?? ??:0
#149 0x7a76f2 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4809
#150 0x7a76f2 in ?? ??:0
#151 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#152 0x7995cc in ?? ??:0
#153 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#154 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#155 0x7a9847 in ?? ??:0
#156 0x7ac2ea in _PyFunction_FastCallDict
/home/test/check/PythonASAN/Python/ceval.c:5021
#157 0x7ac2ea in ?? ??:0
#158 0x574668 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2295
#159 0x574668 in ?? ??:0
#160 0x5749fa in _PyObject_Call_Prepend
/home/test/check/PythonASAN/Objects/abstract.c:2358
#161 0x5749fa in ?? ??:0
#162 0x573e9b in PyObject_Call
/home/test/check/PythonASAN/Objects/abstract.c:2246
#163 0x573e9b in ?? ??:0
#164 0x6713f8 in slot_tp_init
/home/test/check/PythonASAN/Objects/typeobject.c:6380
#165 0x6713f8 in ?? ??:0
#166 0x666d8d in type_call
/home/test/check/PythonASAN/Objects/typeobject.c:915 (discriminator 1)
#167 0x666d8d in ?? ??:0
#168 0x5745f0 in _PyObject_FastCallDict
/home/test/check/PythonASAN/Objects/abstract.c:2316
#169 0x5745f0 in ?? ??:0
#170 0x7a7429 in call_function
/home/test/check/PythonASAN/Python/ceval.c:4812
#171 0x7a7429 in ?? ??:0
#172 0x7995cc in _PyEval_EvalFrameDefault
/home/test/check/PythonASAN/Python/ceval.c:3275
#173 0x7995cc in ?? ??:0
#174 0x7a9847 in PyEval_EvalFrameEx
/home/test/check/PythonASAN/Python/ceval.c:718
#175 0x7a9847 in _PyEval_EvalCodeWithName
/home/test/check/PythonASAN/Python/ceval.c:4119
#176 0x7a9847 in ?? ??:0
#177 0x78e0df in PyEval_EvalCodeEx
/home/test/check/PythonASAN/Python/ceval.c:4140
#178 0x78e0df in PyEval_EvalCode
/home/test/check/PythonASAN/Python/ceval.c:695
#179 0x78e0df in ?? ??:0
#180 0x5142f5 in run_mod /home/test/check/PythonASAN/Python/pythonrun.c:980
#181 0x5142f5 in PyRun_FileExFlags
/home/test/check/PythonASAN/Python/pythonrun.c:933
#182 0x5142f5 in ?? ??:0
#183 0x512afa in PyRun_SimpleFileExFlags
/home/test/check/PythonASAN/Python/pythonrun.c:396
#184 0x512afa in ?? ??:0
#185 0x53eefd in run_file /home/test/check/PythonASAN/Modules/main.c:320
#186 0x53eefd in Py_Main /home/test/check/PythonASAN/Modules/main.c:780
#187 0x53eefd in ?? ??:0
#188 0x503d16 in main /home/test/check/PythonASAN/./Programs/python.c:69
#189 0x503d16 in ?? ??:0
#190 0x7f1572ded82f in __libc_start_main
/build/glibc-GKVZIf/glibc-2.23/csu/../csu/libc-start.c:291
#191 0x7f1572ded82f in ?? ??:0
#192 0x432548 in _start ??:?
#193 0x432548 in ?? ??:0
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0x8ad15)
==18621==ABORTING
----------
components: Interpreter Core
files: strlen_76
messages: 287340
nosy: beginvuln
priority: normal
severity: normal
status: open
title: AddressSanitizer: SEGV on unknown address 0x0000000028cb
type: security
versions: Python 3.6
Added file: http://bugs.python.org/file46596/strlen_76
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue29501>
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