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CVE-2009-3563

Published: 8 December 2009

ntp_request.c 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.

Priority

Medium

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
upstream
Released (4.2.4p8)
dapper
Released (1:4.2.0a+stable-8.1ubuntu6.3)
hardy
Released (1:4.2.4p4+dfsg-3ubuntu2.3)
intrepid
Released (1:4.2.4p4+dfsg-6ubuntu2.4)
jaunty
Released (1:4.2.4p4+dfsg-7ubuntu5.2)
karmic
Released (1:4.2.4p6+dfsg-1ubuntu5.1)