| Título | GPAC x up to commit f1219cde (2026-07-25) Memory Corruption |
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| Descripción | A vulnerability was found in GPAC up to commit f1219cde (2026-07-25) and classified as problematic. Affected is the function gf_node_get_field in the file scenegraph/base_scenegraph.c of the component MP4Box. The manipulation via a crafted MP4 file processed with the -nstatx argument leads to a heap-buffer-overflow read due to an invalid field index. It is possible to launch the attack locally. User interaction is required.
Technical Details
- Affected file/function: scenegraph/base_scenegraph.c / gf_node_get_field
- Vulnerable parameter: MULTIPLE_REPLACE scene command with out-of-bounds field index
- Attack vector: Local
- Privileges required: None
- Trigger condition: Processing a crafted MP4 file with "MP4Box -nstatx" causes gf_sg_command_apply to call gf_node_get_field with an out-of-bounds field index
Impact
- Confidentiality: Low
- Integrity: None
- Availability: High
CVSS v3.1
Score: 5.5 (Medium)
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Timeline
- Discovered: 2026-07-27
- Vendor notified: 2026-07-27
- Patch released: 2026-07-28
- Public disclosure: 2026-07-27
Countermeasure
Apply the upstream patch. Validate field index bounds before calling gf_node_get_field during scene command application. |
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| Fuente | ⚠️ https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln-GPAC-MP4Box-Heap-Buffer-Overflow-in-gf_node_get_field.md |
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| Usuario | r1ck9 (UID 97869) |
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| Sumisión | 2026-08-02 15:09 (hace 1 mes) |
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| Moderación | 2026-09-12 18:34 (1 month later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 403162 [GPAC hasta f1219cde MP4Box base_scenegraph.c gf_node_get_field desbordamiento de búfer] |
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| Puntos | 20 |
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