| Título | GPAC up to commit f1219cde (2026-07-25) Memory Corruption |
|---|
| Descrição | A vulnerability was found in GPAC up to commit f1219cde (2026-07-25) and classified as problematic. Affected is an unknown function in the file scenegraph/vrml_tools.c of the component MP4Box. The manipulation via a crafted MP4 file processed with the -nstatx argument leads to a NULL pointer dereference detected by UndefinedBehaviorSanitizer. It is possible to launch the attack locally. User interaction is required.
Technical Details
- Affected file/function: scenegraph/vrml_tools.c / member access within null pointer of type 'struct MFURL'
- Vulnerable parameter: Scene command referencing NULL SFURL pointer during VRML field operations
- Attack vector: Local
- Privileges required: None
- Trigger condition: Processing a crafted MP4 file with "MP4Box -nstatx" causes a scene command to dereference a NULL MFURL pointer during node field manipulation
Impact
- Confidentiality: None
- 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 MFURL pointers for NULL before dereferencing during VRML field operations. |
|---|
| Fonte | ⚠️ https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln-GPAC-MP4Box-NULL-Pointer-Dereference-in-gf_node_set_cyclic_traverse_flag.md |
|---|
| Utilizador | r1ck9 (UID 97869) |
|---|
| Submissão | 02/08/2026 17h15 (há 1 mês) |
|---|
| Moderação | 12/09/2026 21h39 (1 month later) |
|---|
| Estado | Aceite |
|---|
| Entrada VulDB | 403191 [GPAC até f1219cde MP4Box scenegraph/vrml_tools.c Negação de Serviço] |
|---|
| Pontos | 20 |
|---|