CVE-2009-3563

CVE Details

Release Date:	2009-12-09
Impact:	Moderate	What is this?

Description

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.

See more information about CVE-2009-3563 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	6.4
Vector String:	AV:N/AC:L/Au:N/C:N/I:P/A:P
Version:	2.0
Attack Vector:	Network
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Enterprise Linux version 4 (ntp)	ELSA-2009-1648	2009-12-08
Oracle Linux version 5 (ntp)	ELSA-2009-1648	2009-12-08