Witness Block Parsing DoS Vulnerability in lnd

Lightning Network Daemon (lnd) is an implementation of a lightning bitcoin overlay network node. All lnd nodes before version `v0.15.4` are vulnerable to a block parsing bug that can cause a node to enter a degraded state once encountered. In this degraded state, nodes can continue to make payments and forward HTLCs, and close out channels. Opening channels is prohibited, and also on chain transaction events will be undetected. This can cause loss of funds if a CSV expiry is researched during a breach attempt or a CLTV delta expires forgetting the funds in the HTLC. A patch is available in `lnd` version 0.15.4. Users are advised to upgrade. Users unable to upgrade may use the `lncli updatechanpolicy` RPC call to increase their CLTV value to a very high amount or increase their fee policies. This will prevent nodes from routing through your node, meaning that no pending HTLCs can be present.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

输入验证不恰当

Lightning Network Daemon 输入验证错误漏洞

Lightning Network Daemon（LND）是Lightningnetwork团队的一个对Lightning Network节点完整实现的软件。该软件属于闪电支付网络的一个节点，实现了Lightning Network Specification Compliance协议中规定的条例，支持用于管道管理的对等协议、比特币交易、洋葱网络协议等功能。 Lightning Network Daemon (lnd) v0.15.4之前版本存在输入验证错误漏洞，该漏洞源于所有 lnd 节点都容易受到块解

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