| Título | GPAC master f1219cde (2026-07-25) Buffer Overflow |
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| Descrição | A heap-buffer-overflow vulnerability exists in GPAC master (commit f1219cde, 2026-07-25). The issue occurs in the gf_url_concatenate_ex function in utils/url.c at line 313 during proto instantiation via MP4Box -info. The URL concatenation reads out of bounds (1 byte to the left of a 2-byte region) when instantiating a proto whose URL field is malformed. The call chain is: gf_url_concatenate -> gf_inline_get_proto_lib -> gf_sg_proto_instantiate. This issue is different from issue #3807. The vulnerability can be triggered with: MP4Box -info poc. PoC and ASan crash log are available in the GitHub issue report. |
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| Fonte | ⚠️ https://github.com/gpac/gpac/issues/3808 |
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| Utilizador | wsstssw (UID 100468) |
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| Submissão | 09/08/2026 14h35 (há 1 mês) |
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| Moderação | 14/09/2026 20h00 (1 month later) |
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| Estado | Aceite |
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| Entrada VulDB | 403650 [GPAC até f1219cde URL utils/url.c gf_url_concatenate_ex Excesso de tampão] |
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| Pontos | 20 |
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