Description

Heap-based buffer overflow in coresymbolication:272

Environment

radare2 5.6.9 0 @ linux-x86-64 git.
commit: 5.6.9 build: 2022-04-19__23:49:49

Build

export CC=gcc CXX=g++ CFLAGS="-fsanitize=address -static-libasan" CXXFLAGS="-fsanitize=address -static-libasan" LDFLAGS="-fsanitize=address -static-libasan"
./configure && make

POC

radare2 -q -A ./poc

poc

Asan

=================================================================
==140626==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62400012dd37 at pc 0x7ffff41a892b bp 0x7fffffffd160 sp 0x7fffffffd150
READ of size 1 at 0x62400012dd37 thread T0
    #0 0x7ffff41a892a in r_read_le32 /home/ubuntu/radare2-master/libr/include/r_endian.h:176
    #1 0x7ffff41a892a in r_read_at_le32 /home/ubuntu/radare2-master/libr/include/r_endian.h:185
    #2 0x7ffff41a892a in r_read_le64 /home/ubuntu/radare2-master/libr/include/r_endian.h:199
    #3 0x7ffff41a892a in r_read_ble64 /home/ubuntu/radare2-master/libr/include/r_endian.h:322
    #4 0x7ffff41a892a in r_read_ble /home/ubuntu/radare2-master/libr/include/r_endian.h:346
    #5 0x7ffff41a892a in r_coresym_cache_element_new /home/ubuntu/radare2-master/libr/..//libr/bin/p/../format/mach0/coresymbolication.c:272
    #6 0x7ffff419ec0d in parseDragons /home/ubuntu/radare2-master/libr/..//libr/bin/p/bin_symbols.c:253
    #7 0x7ffff419ec0d in load_buffer /home/ubuntu/radare2-master/libr/..//libr/bin/p/bin_symbols.c:292
    #8 0x7ffff419ec0d in load_buffer /home/ubuntu/radare2-master/libr/..//libr/bin/p/bin_symbols.c:256
    #9 0x7ffff3c849fd in r_bin_object_new /home/ubuntu/radare2-master/libr/bin/bobj.c:149
    #10 0x7ffff3c76714 in r_bin_file_new_from_buffer /home/ubuntu/radare2-master/libr/bin/bfile.c:585
    #11 0x7ffff3c30a27 in r_bin_open_buf /home/ubuntu/radare2-master/libr/bin/bin.c:281
    #12 0x7ffff3c31f06 in r_bin_open_io /home/ubuntu/radare2-master/libr/bin/bin.c:341
    #13 0x7ffff4a747e8 in r_core_file_do_load_for_io_plugin /home/ubuntu/radare2-master/libr/core/cfile.c:436
    #14 0x7ffff4a747e8 in r_core_bin_load /home/ubuntu/radare2-master/libr/core/cfile.c:637
    #15 0x7ffff4a747e8 in r_core_bin_load /home/ubuntu/radare2-master/libr/core/cfile.c:605
    #16 0x7ffff779763f in r_main_radare2 /home/ubuntu/radare2-master/libr/main/radare2.c:1206
    #17 0x7ffff75340b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
    #18 0x55555555d9bd in _start (/home/ubuntu/radare2-master/binr/radare2/radare2+0x99bd)

0x62400012dd37 is located 0 bytes to the right of 7223-byte region [0x62400012c100,0x62400012dd37)
allocated by thread T0 here:
    #0 0x555555648a08 in __interceptor_malloc (/home/ubuntu/radare2-master/binr/radare2/radare2+0xf4a08)
    #1 0x7ffff41a1c51 in r_coresym_cache_element_new /home/ubuntu/radare2-master/libr/..//libr/bin/p/../format/mach0/coresymbolication.c:180

SUMMARY: AddressSanitizer: heap-buffer-overflow /home/ubuntu/radare2-master/libr/include/r_endian.h:176 in r_read_le32
Shadow bytes around the buggy address:
  0x0c488001db50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c488001db60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c488001db70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c488001db80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c488001db90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c488001dba0: 00 00 00 00 00 00[07]fa fa fa fa fa fa fa fa fa
  0x0c488001dbb0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c488001dbc0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c488001dbd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c488001dbe0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c488001dbf0: 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
==140626==ABORTING