| 标题 | GPAC master f1219cde (2026-07-25) Buffer Overflow |
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| 描述 | 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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| 来源 | ⚠️ https://github.com/gpac/gpac/issues/3808 |
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| 用户 | wsstssw (UID 100468) |
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| 提交 | 2026-08-09 14時35分 (1 月前) |
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| 管理 | 2026-09-14 20時00分 (1 month later) |
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| 状态 | 已接受 |
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| VulDB条目 | 403650 [GPAC 直到 f1219cde URL utils/url.c gf_url_concatenate_ex 内存损坏] |
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| 积分 | 20 |
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