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leafnode denial-of-service triggered by article request


The leafnode NNTP server may go into an unterminated loop with 100% CPU use when an article is requested by Message-ID that has been crossposted to several news groups when one of the group names is the prefix of another group name that the article was cross-posted to. Found by Jan Knutar.



portaudit: leafnode denial-of-service triggered by article request

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Oliver Eikemeier <>