| Название | luben zstd-jni 1.5.7-13 Cross-Object Use-After-Free |
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| Описание | I was auditing the dictionary-sharing code path in zstd-jni and noticed that ZstdCompressCtx.loadDict(ZstdDictCompress dict) hands a raw native pointer to upstream zstd via ZSTD_CCtx_refCDict, but nothing tracks whether the dictionary object is still alive afterward. If the dictionary is close()d while a context that loaded it is still around, the next compress() call on that context dereferences freed native memory. I built the library from source and reproduced a real crash with a heap-spray. |
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| Источник | ⚠️ https://github.com/luben/zstd-jni/issues/404 |
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| Пользователь | Yu Bao from PayPal Cyber Security Team (UID 99838) |
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| Представление | 13.08.2026 07:25 (1 месяц назад) |
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| Модерация | 14.09.2026 07:37 (1 month later) |
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| Статус | принято |
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| Запись VulDB | 403407 [luben zstd-jni до 1.5.7-13 Dictionary Sharing ZstdCompressCtx.java ZstdCompressCtx.loadDict повреждение памяти] |
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| Баллы | 20 |
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