| 제목 | GPAC GPAC (MP4Box) gpac f1219cde (master, 2026-07-25) Use After Free |
|---|
| 설명 | Description:
GPAC MP4Box at commit f1219cde contains a heap-use-after-free vulnerability during BT DEF/USE resolution. When gf_bt_sf_node fails to parse a malformed node, the error path unregisters and frees the partially constructed node but leaves its pointer in parser->def_nodes. A later DEF lookup calls gf_node_get_name with the dangling pointer.
Reproduction command:
./bin/gcc/MP4Box -add ../pocs/poc_3803 -new /tmp/out.mp4
Expected result:
AddressSanitizer reports a heap-use-after-free READ of size 8 in gf_node_get_name at scenegraph/base_scenegraph.c:1340.
Impact:
A crafted BT scene can crash MP4Box during DEF/USE name resolution and cause denial of service. Reuse of the freed heap region may create additional memory-corruption risk.
PoC:
https://github.com/Ech06/CVE_submit/blob/main/pocs/poc_3803
Issue:
https://github.com/gpac/gpac/issues/3803
Fix:
https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24 |
|---|
| 원천 | ⚠️ https://github.com/Ech06/CVE_submit/blob/main/gpac_3803.md |
|---|
| 사용자 | Ech06 (UID 98792) |
|---|
| 제출 | 2026. 08. 03. PM 04:55 (1 월 ago) |
|---|
| 모더레이션 | 2026. 09. 13. PM 03:37 (1 month later) |
|---|
| 상태 | 수락 |
|---|
| VulDB 항목 | 403299 [GPAC 까지 f1219cde MP4Box base_scenegraph.c gf_node_get_name 메모리 손상] |
|---|
| 포인트들 | 20 |
|---|