bug-binutils
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Bug binutils/28273] New: [strip] heap-use-after-free in 'group_signatur


From: tricker51449 at gmail dot com
Subject: [Bug binutils/28273] New: [strip] heap-use-after-free in 'group_signature'
Date: Thu, 26 Aug 2021 13:11:33 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=28273

            Bug ID: 28273
           Summary: [strip] heap-use-after-free in 'group_signature'
           Product: binutils
           Version: 2.30
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: tricker51449 at gmail dot com
  Target Milestone: ---

Created attachment 13626
  --> https://sourceware.org/bugzilla/attachment.cgi?id=13626&action=edit
crash file

Hello, 

I detect the exception in strip via fuzzing testing.

C compiler: clang-8.0

Configuration command: CFLAGS="-fsanitize=address"
CXXFLAGS="-fsanitize=address" ./configure --disable-shared && make -j

Execution command: strip -o <files> <input>

The stack trace is shown below:

==70254==ERROR: AddressSanitizer: heap-use-after-free on address 0x606000001e98
at pc 0x00000050efa7 bp 0x7ffc15c7dc20 sp 0x7ffc15c7dc18
READ of size 8 at 0x606000001e98 thread T0
    #0 0x50efa6 in group_signature (/binutils-2.30-asan/bin/strip+0x50efa6)
    #1 0x50e2f9 in is_strip_section (/binutils-2.30-asan/bin/strip+0x50e2f9)
    #2 0x504ce7 in setup_section (/binutils-2.30-asan/bin/strip+0x504ce7)
    #3 0x5d62ae in bfd_map_over_sections
(/binutils-2.30-asan/bin/strip+0x5d62ae)
    #4 0x500e58 in copy_object (/binutils-2.30-asan/bin/strip+0x500e58)
    #5 0x4fcbe1 in copy_file (/binutils-2.30-asan/bin/strip+0x4fcbe1)
    #6 0x4f759c in strip_main (/binutils-2.30-asan/bin/strip+0x4f759c)
    #7 0x4f6a3d in main (/binutils-2.30-asan/bin/strip+0x4f6a3d)
    #8 0x7f48208ecbf6 in __libc_start_main
/build/glibc-S9d2JN/glibc-2.27/csu/../csu/libc-start.c:310
    #9 0x41b659 in _start (/binutils-2.30-asan/bin/strip+0x41b659)

0x606000001e98 is located 24 bytes inside of 49-byte region
[0x606000001e80,0x606000001eb1)
freed by thread T0 here:
    #0 0x4c6c82 in __interceptor_free (/binutils-2.30-asan/bin/strip+0x4c6c82)
    #1 0x7f482090018f in _nl_make_l10nflist
/build/glibc-S9d2JN/glibc-2.27/intl/../intl/l10nflist.c:237

previously allocated by thread T0 here:
    #0 0x4c7003 in malloc (/binutils-2.30-asan/bin/strip+0x4c7003)
    #1 0x7f48208ffe10 in _nl_make_l10nflist
/build/glibc-S9d2JN/glibc-2.27/intl/../intl/l10nflist.c:166

SUMMARY: AddressSanitizer: heap-use-after-free
(/binutils-2.30-asan/bin/strip+0x50efa6) in group_signature
Shadow bytes around the buggy address:
  0x0c0c7fff8380: fd fd fd fd fa fa fa fa fd fd fd fd fd fd fd fa
  0x0c0c7fff8390: fa fa fa fa fd fd fd fd fd fd fd fd fa fa fa fa
  0x0c0c7fff83a0: fd fd fd fd fd fd fd fa fa fa fa fa fd fd fd fd
  0x0c0c7fff83b0: fd fd fd fa fa fa fa fa fd fd fd fd fd fd fd fa
  0x0c0c7fff83c0: fa fa fa fa 00 00 00 00 00 00 00 00 fa fa fa fa
=>0x0c0c7fff83d0: fd fd fd[fd]fd fd fd fa fa fa fa fa fa fa fa fa
  0x0c0c7fff83e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c0c7fff83f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c0c7fff8400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c0c7fff8410: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c0c7fff8420: 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
==70254==ABORTING


Thanks & Best Regards

-- 
You are receiving this mail because:
You are on the CC list for the bug.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]