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Description
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Description
Buffer overflow in hevc_parse_vps_extension function of media_tools/av_parsers.c
for (i = 0; i < (num_scalability_types - splitting_flag); i++) {
dimension_id_len[i] = 1 + gf_bs_read_int_log_idx(bs, 3, "dimension_id_len_minus1", i); // overflow at dimension_id_len
}Version info
MP4Box - GPAC version 2.1-DEV-rev574-g9d5bb184b-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: --enable-sanitizer
Features: GPAC_CONFIG_LINUX GPAC_64_BITS GPAC_HAS_IPV6 GPAC_HAS_SSL GPAC_HAS_SOCK_UN GPAC_MINIMAL_ODF GPAC_HAS_QJS GPAC_HAS_LINUX_DVB GPAC_DISABLE_3D
Reproduce
compile and run
./configure --enable-sanitizer
make
./MP4Box import -add poc_bof6.mp4
Crash reported by sanitizer
[Core] exp-golomb read failed, not enough bits in bitstream !
[HEVC] Warning: Error parsing NAL unit
media_tools/av_parsers.c:7633:19: runtime error: index 16 out of bounds for type 'u8 [16]'
POC
Impact
Potentially causing DoS and RCE
Credit
Xdchase
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