Security Bulletin: Multiple vulnerabilities in OpenSource NTP affects IBM Netezza Host Management

Summary

OpenSource NTP is used by IBM Netezza Host Management. IBM Netezza Host Management has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2017-6462**
DESCRIPTION:** NTP is vulnerable to a denial of service, caused by a buffer overflow in the legacy Datum Programmable Time Server refclock driver. By sending specially crafted packets, a local authenticated attacker could exploit this vulnerability to overflow a buffer and cause a denial of service.
CVSS Base Score: 1.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123611 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-6463**
DESCRIPTION:** NTP is vulnerable to a denial of service. By sending an invalid setting, a remote authenticated attacker could exploit this vulnerability using the :config directive to cause the daemon to crash.
CVSS Base Score: 4.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123612 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H)

CVEID: CVE-2017-6464**
DESCRIPTION:** NTP is vulnerable to a denial of service. A remote authenticated attacker could exploit this vulnerability using a malformed mode configuration directive to cause the application to crash.
CVSS Base Score: 4.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123610 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H)

Affected Products and Versions

• • IBM Netezza Host Management 5.3.3.0 - 5.3.10.1
• IBM Netezza Host Management 5.4.1.0 - 5.4.14.0

Remediation/Fixes

None

Workarounds and Mitigations

Mitigation of the reported CVE applies to the following platforms:
PureData System for Analytics N3001
PureData System for Analytics N200x
PureData System for Analytics N1001
IBM Netezza High Capacity Appliance C1000
IBM Netezza 1000
IBM Netezza 100

Execute below steps using “root” user on both ha1/ha2 hosts

Step 1. Check if NTP is installed in the host
[host1]#rpm -qa | grep ntp

Step 2. Properly monitor your ntpd instances using command
[host1]# service ntpd status

Step 3. If NTPD services has stopped running, restart the NTP services without -g option
[host1]# /etc/init.d/ntpd restart

For more details on IBM Netezza Host Management security patching:

• Red Hat Enterprise Linux (RHEL) Security Patching for IBM PureData System for Analytics appliances