Rapid7 Vulnerability & Exploit Database

RHSA-2009:1039: ntp security update

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RHSA-2009:1039: ntp security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
05/19/2009
Created
07/25/2018
Added
09/12/2009
Modified
07/04/2017

Description

The Network Time Protocol (NTP) is used to synchronize a computer's timewith a referenced time source.A buffer overflow flaw was discovered in the ntpd daemon's NTPv4authentication code. If ntpd was configured to use public key cryptographyfor NTP packet authentication, a remote attacker could use this flaw tosend a specially-crafted request packet that could crash ntpd.(CVE-2009-1252)Note: NTP authentication is not enabled by default.A buffer overflow flaw was found in the ntpq diagnostic command. Amalicious, remote server could send a specially-crafted reply to an ntpqrequest that could crash ntpq. (CVE-2009-0159)All ntp users are advised to upgrade to this updated package, whichcontains backported patches to resolve these issues. After installing theupdate, the ntpd daemon will be restarted automatically.

Solution(s)

  • redhat-upgrade-ntp

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