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Advisories

GPAC through 26.07.0 Use-After-Free in gf_sg_proto_del During Scene Teardown

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Severity
medium
Date
Affecting

  • gpac <= 26.07.0

CWE
  • CWE-416 Use After Free
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), Jean Le Feuvre
Description
GPAC through 26.07.0 contains a use-after-free vulnerability in gf_sg_proto_del() in src/scenegraph/vrml_proto.c because gf_sg_reset() frees unregistered prototypes still referenced by scene commands. Attackers can supply a crafted XMT/BT scene declaring prototypes via commands, processed by MP4Box -chap, to trigger freed memory access and crash the process.

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