CVE-2022-47094: Null pointer dereference filters/dmx_m2ts.c:343 in m2tsdmx_declare_pid · Issue #2345 · gpac/gpac

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Description

Null pointer dereference filters/dmx_m2ts.c:343 in m2tsdmx_declare_pid

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_nderef.avi

Crash reported by sanitizer

Broken PAT found reserved PID 0, ignoring
Broken PAT found reserved PID 0, ignoring
Broken PAT found reserved PID 0, ignoring
Broken PAT found reserved PID 0, ignoring
Broken PMT descriptor! size 54, desc size 48 but position 5
MORE sections on pid 4144
Broken PMT descriptor! size 54, desc size 48 but position 10
Broken PMT descriptor! size 54, desc size 48 but position 15
[MPEG-2 TS] PID 4144 reused across programs 8192 and 8192, not completely supported
Broken PMT descriptor! size 54, desc size 48 but position 20
[MPEG-2 TS] PID 4144 reused across programs 8192 and 8192, not completely supported
MORE sections on pid 4144
[MPEG-2 TS] PID 4144 reused across programs 8192 and 8192, not completely supported
[MPEG-2 TS] Invalid PMT es descriptor size for PID 5859
[MPEG-2 TS] TS Packet 3 is scrambled - not supported
Broken PAT found reserved PID 0, ignoring
Broken PAT found reserved PID 0, ignoring
Broken PAT found reserved PID 0, ignoring
Broken PAT found reserved PID 0, ignoring
Broken PMT descriptor! size 54, desc size 48 but position 5
MORE sections on pid 4144
Broken PMT descriptor! size 54, desc size 48 but position 10
Broken PMT descriptor! size 54, desc size 48 but position 15
[MPEG-2 TS] PID 4144 reused across programs 8192 and 8192, not completely supported
Broken PMT descriptor! size 54, desc size 48 but position 20
[MPEG-2 TS] PID 4144 reused across programs 8192 and 8192, not completely supported
MORE sections on pid 4144
[MPEG-2 TS] PID 4144 reused across programs 8192 and 8192, not completely supported
[MPEG-2 TS] Invalid PMT es descriptor size for PID 5859
[M2TSDmx] Stream type 0x30 not supported - ignoring pid
filters/dmx_m2ts.c:343:51: runtime error: member access within null pointer of type 'struct GF_InitialObjectDescriptor'

POC

poc_nderef.zip

Impact

Potentially causing DoS and RCE

Credit

Xdchase