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Bitcoin Core 披露可停滞区块处理的中危漏洞,修复已包含在 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 日公开。该漏洞存在于 29.2 和 30 之前的版本中,恶意节点可利用紧凑区块中的见证数据篡改(witness malleation),在特定条件下停滞受害者的区块处理。

公告指出,受影响的节点在重建紧凑区块后、检查见证数据之前会清除下载状态。若检查失败,节点会回退到向同一节点请求完整区块,并等待 10 分钟超时。如果攻击者控制了受害者的 3 个高带宽对等节点,或受害者运行在 -blockonly 模式下,该攻击可无限重复。

该漏洞由 Eugene Siegel 发现并负责任披露,修复已包含在 Bitcoin Core 29.2 和 30 版本中。

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