https://sourceware.org/bugzilla/show_bug.cgi?id=21618
Bug ID: 21618
Summary: heap-buffer-overflow in bfd_getl32
Product: binutils
Version: 2.29 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: aadamski at quarkslab dot com
Target Milestone: ---
Hello there,
I have been fuzzing objdump with American Fuzzy Lop + ASAN/UBSAN.
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 configuration settings used were `--enable-targets=all --disable-shared`.
The compilation flags used were `-g -O2 -fno-omit-frame-pointer
-fsanitize=address -fno-sanitize-recover=all`. The command used was `objdump
-afpxDSsgetTrR <file>`.
Let me know if there is any additional information I can provide.
--
Input: c6f371402ab3326e29cccbbf1c255de2.2a5be83b2308abbdf71a08a2304025f9.min
Output: c6f371402ab3326e29cccbbf1c255de2.2a5be83b2308abbdf71a08a2304025f9.txt
Error in "bfd_getl32": heap-buffer-overflow
in bfd_getl32 at bfd/libbfd.c:560
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/libbfd.c#L560)
in evax_bfd_print_eeom at bfd/vms-alpha.c:5683
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L5683)
in evax_bfd_print_eobj at bfd/vms-alpha.c:6367
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L6367)
in vms_bfd_print_private_bfd_data at bfd/vms-alpha.c:7952
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L7952)
in dump_bfd_private_header at binutils/objdump.c:2924
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L2924)
in dump_bfd at binutils/objdump.c:3508
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L3508)
in display_file at binutils/objdump.c:3717
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L3717)
in main at binutils/objdump.c:4019
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L4019)
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