https://sourceware.org/bugzilla/show_bug.cgi?id=21158
Bug ID: 21158
Summary: objdump - of-by-one global-buffer-overflow
Product: binutils
Version: 2.29 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: thuanpv at comp dot nus.edu.sg
Target Milestone: ---
Created attachment 9825
--> https://sourceware.org/bugzilla/attachment.cgi?id=9825&action=edit
Bug triggering input
Dear all,
This bug was found with AFLGo, a directed version of AFL/AFLFast. Thanks also
to Marcel Böhme.
This bug was found on Ubuntu 14.04 64-bit & binutils was checked out from main
repository at git://sourceware.org/git/binutils-gdb.git. Its commit is
61697d017e114d7667fbb340fb73f8184d48ee5a (Tue Feb 14 00:00:30 2017)
binutils was built with ASAN using gcc-6.2 and clang-3.4. The configure command
was:
CC=clang CFLAGS="-DFORTIFY_SOURCE=2 -fstack-protector-all
-fsanitize=undefined,address -fno-omit-frame-pointer -g -Wno-error"
../configure --disable-shared --disable-gdb --disable-libdecnumber
--disable-readline --disable-sim
To reproduce:
Download the attached file - objdump_bug_2
objdump -g objdump_bug_2
ASAN says:
==34445==ERROR: AddressSanitizer: global-buffer-overflow on address
0x000001d1cc3f at pc 0x621346 bp 0x7ffe1e819070 sp 0x7ffe1e819068
READ of size 1 at 0x000001d1cc3f thread T0
#0 0x621345 in read_symbol_stabs_debugging_info
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/rddbg.c:303
#1 0x61aecd in read_debugging_info
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/rddbg.c:62
#2 0x498f7b in dump_bfd
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/objdump.c:3513
#3 0x4978fb in display_object_bfd
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/objdump.c:3564
#4 0x497698 in display_any_bfd
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/objdump.c:3653
#5 0x495ebe in display_file
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/objdump.c:3674
#6 0x493edd in main
/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/../../binutils/objdump.c:3969
#7 0x7fdc72255f44 (/lib/x86_64-linux-gnu/libc.so.6+0x21f44)
#8 0x48c95c in _start
(/home/ubuntu/thesis/subjects/binutils-gdb-nick/build-asan/binutils/objdump+0x48c95c)
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