Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : ntp vulnerability (USN-867-1)

Medium Nessus Plugin ID 43087


The remote Ubuntu host is missing one or more security-related patches.


Robin Park and Dmitri Vinokurov discovered a logic error in ntpd. A remote attacker could send a crafted NTP mode 7 packet with a spoofed IP address of an affected server and cause a denial of service via CPU and disk resource consumption.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: Medium

ID: 43087

File Name: ubuntu_USN-867-1.nasl

Version: $Revision: 1.14 $

Type: local

Agent: unix

Published: 2009/12/09

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.4

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:ntp, p-cpe:/a:canonical:ubuntu_linux:ntp-doc, p-cpe:/a:canonical:ubuntu_linux:ntp-refclock, p-cpe:/a:canonical:ubuntu_linux:ntp-server, p-cpe:/a:canonical:ubuntu_linux:ntp-simple, p-cpe:/a:canonical:ubuntu_linux:ntpdate, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:8.10, cpe:/o:canonical:ubuntu_linux:9.04, cpe:/o:canonical:ubuntu_linux:9.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/12/08

Reference Information

CVE: CVE-2009-3563

BID: 37255

OSVDB: 60847

USN: 867-1