CVE-2022-47089: Buffer overflow in gf_vvc_read_sps_bs_internal function of media_tools/av_parsers.c · Issue #2338 · gpac/gpac

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Description

buffer overflow in gf_vvc_read_sps_bs_internal function of media_tools/av_parsers.c

for (i=0; i<sps_rpl1_same_as_rpl0; i++) { u32 j; sps->num_ref_pic_lists[i] = gf_bs_read_ue_log_idx(bs, "sps_num_ref_pic_lists", i); for (j=0; j<sps->num_ref_pic_lists[i]; j++) { s32 res = vvc_parse_ref_pic_list_struct(bs, sps, i, j, &sps->rps[i][j]); // when j == 64, overflow sps->rps if (res<0) return res; } }

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.mp4

Crash reported by sanitizer

[VVC] Warning: Error parsing NAL unit
[Core] exp-golomb read failed, not enough bits in bitstream !
media_tools/av_parsers.c:10710:71: runtime error: index 65 out of bounds for type 'VVC_RefPicList [64]'

POC

poc_bof.zip

Impact

Potentially causing DoS and RCE

Credit

xdchase