| Titre | GPAC GPAC (MP4Box) gpac f1219cde (master, 2026-07-25) NULL Pointer Dereference |
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| Description | Description:
GPAC MP4Box at commit f1219cde contains an invalid pointer dereference in the BT/BIFS command parser. gf_bt_parse_bifs_command interprets a target field as a child-node list without first verifying that it is the children field. The invalid list pointer is passed to gf_node_list_get_child, which dereferences an address near NULL.
Reproduction command:
./bin/gcc/MP4Box -add ../pocs/poc_3802 -new /tmp/out.mp4
Expected result:
AddressSanitizer reports a SEGV caused by a READ memory access at address 0x8 in gf_node_list_get_child at scenegraph/base_scenegraph.c:1491.
Impact:
A crafted BT/BIFS scene can terminate MP4Box and cause denial of service in applications that process untrusted scene files.
PoC:
https://github.com/Ech06/CVE_submit/blob/main/pocs/poc_3802
Issue:
https://github.com/gpac/gpac/issues/3802
Fix:
https://github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975 |
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| La source | ⚠️ https://github.com/Ech06/CVE_submit/blob/main/gpac_3802.md |
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| Utilisateur | Ech06 (UID 98792) |
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| Soumission | 03/08/2026 16:54 (il y a 1 mois) |
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| Modérer | 13/09/2026 15:37 (1 month later) |
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| Statut | Accepté |
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| Entrée VulDB | 403298 [GPAC jusqu’à f1219cde MP4Box base_scenegraph.c gf_node_list_get_child target déni de service] |
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| Points | 20 |
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