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in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.","Type":"Description","Title":"CVE-2009-3563"},{"CveYear":"2009","CveId":"3563","Ordinal":"2","NoteData":"2009-12-09","Type":"Other","Title":"Published"},{"CveYear":"2009","CveId":"3563","Ordinal":"3","NoteData":"2017-09-18","Type":"Other","Title":"Modified"}]}}}