| Titolo | luben zstd-jni 1.5.7-13 Cross-Object Use-After-Free |
|---|
| Descrizione | 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. |
|---|
| Fonte | ⚠️ https://github.com/luben/zstd-jni/issues/404 |
|---|
| Utente | Yu Bao from PayPal Cyber Security Team (UID 99838) |
|---|
| Sottomissione | 13/08/2026 07:25 (1 mese fa) |
|---|
| Moderazione | 14/09/2026 07:37 (1 month later) |
|---|
| Stato | Accettato |
|---|
| Voce VulDB | 403407 [luben zstd-jni fino a 1.5.7-13 Dictionary Sharing ZstdCompressCtx.java ZstdCompressCtx.loadDict buffer overflow] |
|---|
| Punti | 20 |
|---|