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Advisories

GPAC through 26.07.0 Type Confusion via gf_sg_command_apply XMT Field-Replace

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Severity
medium
Date
Affecting

  • gpac <= 26.07.0

CWE
  • CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Alexander A. Shvedov (sigdevel)
Description
GPAC through 26.07.0 contains a type confusion vulnerability in gf_sg_command_apply() in src/scenegraph/commands.c that fails to verify BIFS field-replace command types match target node fields. Attackers can supply a crafted XMT file opened with MP4Box, such as via chapter import, causing gf_sg_vrml_field_clone() to memcpy from invalid pointers and crash.

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