GNU binutils – ‘rx_decode_opcode’ Buffer Overflow

• Exploit Database
• 112 阅读

• 作者： Alexandre Adamski
  日期： 2017-06-19
• 类别：

  • dos
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/42198/
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  Source: https://sourceware.org/bugzilla/show_bug.cgi?id=21587   I have been fuzzing objdump with American Fuzzy Lop and AddressSanitizer.   Please find attached the minimized file causing the issue ("Input") and the ASAN report log ("Output"). Below is the reduced stacktrace with links to the corresponding source lines on a GitHub mirror.   The command I used was <code>objdump -D <file></code>.   Let me know if there is any additional information I can provide.   --   Input: 9ed130cf25d8df5207cad7fc0de4fc1f.109246746a4907b00292c7837b29f085.min Output: 9ed130cf25d8df5207cad7fc0de4fc1f.109246746a4907b00292c7837b29f085.txt   Error in "rx_decode_opcode": global-buffer-overflow in rx_decode_opcode at opcodes/rx-decode.opc:288 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/opcodes/rx-decode.opc#L288) in print_insn_rx at opcodes/rx-dis.c:123 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/opcodes/rx-dis.c#L123) in disassemble_bytes at binutils/objdump.c:1864 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/binutils/objdump.c#L1864) in disassemble_section at binutils/objdump.c:2309 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/binutils/objdump.c#L2309) in bfd_map_over_sections at bfd/section.c:1395 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/bfd/section.c#L1395) in disassemble_data at binutils/objdump.c:2445 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/binutils/objdump.c#L2445) in dump_bfd at binutils/objdump.c:3547 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/binutils/objdump.c#L3547) in display_file at binutils/objdump.c:3714 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/binutils/objdump.c#L3714) in main at binutils/objdump.c:4016 (see https://github.com/bminor/binutils-gdb/blob/561bf3e950e410fbcac06523d43039f1f58150ca/binutils/objdump.c#L4016)   Additional Information: The command used was <code>objdump -D <file></code>. The compilation flags used were <code>-g -O2 -fno-omit-frame-pointer -fsanitize=address -fno-sanitize-recover=undefined</code>. The configuration settings used were <code>--enable-targets=all --disable-shared</code>.     Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/42198.zip