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Bitcoin Core 披露可停滯區塊處理的中危漏洞,修復已包含在 29.2 和 30 版本中

2026-11-11 09:42:57

ChainCatcher 消息,据 Bitcoin Core 安全公告,中危漏洞 CVE-2025-62859 于 2026 年 11 月 10 日公開。該漏洞存在於 29.2 和 30 之前的版本中,惡意節點可利用緊湊區塊中的見證數據篡改(witness malleation),在特定條件下停滯受害者的區塊處理。

公告指出,受影響的節點在重建緊湊區塊後、檢查見證數據之前會清除下載狀態。若檢查失敗,節點會回退到向同一節點請求完整區塊,並等待 10 分鐘超時。如果攻擊者控制了受害者的 3 個高帶寬對等節點,或受害者運行在 -blockonly 模式下,該攻擊可無限重複。

該漏洞由 Eugene Siegel 發現並負責披露,修復已包含在 Bitcoin Core 29.2 和 30 版本中。

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