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Leafnode < 1.11.2 Abrupt Disconnect DoS

Medium

Synopsis

The remote host is vulnerable to a Denial of Service (DoS) attack.

Description

The remote host is running the LeafNode NNTP server. The version of LeafNode is vulnerable to a remote Denial of Service (DoS) attack. Specifically, when an upstream NNTP server requests a header and then abruptly terminates the connection, the LeafNode NNTP server fails. Successful exploitation would result in a loss of availability.

Solution

Upgrade to version 1.11.2 or higher.