CVE-2009-3563

Publication date 8 December 2009

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Status

Package Ubuntu Release Status
ntp 9.10 karmic
Fixed 1:4.2.4p6+dfsg-1ubuntu5.1
9.04 jaunty
Fixed 1:4.2.4p4+dfsg-7ubuntu5.2
8.10 intrepid
Fixed 1:4.2.4p4+dfsg-6ubuntu2.4
8.04 LTS hardy
Fixed 1:4.2.4p4+dfsg-3ubuntu2.3
6.06 LTS dapper
Fixed 1:4.2.0a+stable-8.1ubuntu6.3