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Hello,
A heap-buffer-overflow has occurred in function gf_isom_dovi_config_get of isomedia/avc_ext.c:2435 when running program MP4Box,this can reproduce on the lattest commit.
System info:
Ubuntu 20.04.1 : clang 10.0.0 , gcc 9.3.0
Verification steps:
1.Get the source code of gpac
2.Compile
cd gpac-master
CC=gcc CXX=g++ CFLAGS="-fsanitize=address" CXXFLAGS="-fsanitize=address" ./configure
make
3.run MP4Box
./MP4Box -info poc.mp4
command line
[iso file] Unknown box type esJs in parent enca
[iso file] Unknown box type stts in parent enca
[iso file] Box "enca" (start 1455) has 5 extra bytes
[iso file] Box "enca" is larger than container box
[iso file] Box "stsd" size 171 (start 1439) invalid (read 192)
* Movie Info *
Timescale 90000 - 2 tracks
Segmentation fault
asan info
=================================================================
==1042542==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x610000000130 at pc 0x7fc6ede92514 bp 0x7ffcfced6850 sp 0x7ffcfced6840
READ of size 8 at 0x610000000130 thread T0
#0 0x7fc6ede92513 in gf_isom_dovi_config_get isomedia/avc_ext.c:2435
#1 0x7fc6ee2fec1e in gf_media_get_rfc_6381_codec_name media_tools/isom_tools.c:4207
#2 0x558b1bf03ac5 in DumpTrackInfo /home.../gpac/gpac-master/applications/mp4box/filedump.c:3442
#3 0x558b1bf18f44 in DumpMovieInfo /home.../gpac/gpac-master/applications/mp4box/filedump.c:3777
#4 0x558b1bed571d in mp4boxMain /home.../gpac/gpac-master/applications/mp4box/main.c:5991
#5 0x7fc6ed2390b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
#6 0x558b1be77f1d in _start (/home.../gpac/gpac-master/bin/gcc/MP4Boxfl+0x48f1d)
Address 0x610000000130 is a wild pointer.
SUMMARY: AddressSanitizer: heap-buffer-overflow isomedia/avc_ext.c:2435 in gf_isom_dovi_config_get
Shadow bytes around the buggy address:
0x0c207fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c207fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c207fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c207fff8000: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
0x0c207fff8010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c207fff8020: fa fa fa fa fa fa[fa]fa fa fa fa fa fa fa fa fa
0x0c207fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c207fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c207fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c207fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c207fff8070: 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
==1042542==ABORTING
Hello,
A heap-buffer-overflow has occurred in function gf_isom_dovi_config_get of isomedia/avc_ext.c:2435 when running program MP4Box,this can reproduce on the lattest commit.
System info:
Ubuntu 20.04.1 : clang 10.0.0 , gcc 9.3.0
poc_heap.zip
Verification steps:
1.Get the source code of gpac
2.Compile
3.run MP4Box
command line
asan info
source code
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