Security Bulletin
Summary
There are vulnerabilities in the Network Time Protocol (NTP) in AIX that is used by the OS Images for IBM PureApplication Software Suite, IBM Bluemix Local System and IBM PureApplication System/Software
Vulnerability Details
CVEID: CVE-2016-9310
DESCRIPTION: NTP is vulnerable to a denial of service, caused by an error in the control mode (mode 6) functionality. By sending specially crafted control mode packets, a remote attacker could exploit this vulnerability to obtain sensitive information and cause the application to crash.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119087 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
Affected Products and Versions
IBM PureApplication System V2.1
IBM PureApplication System V2.2
Remediation/Fixes
Use workaround below.
Workarounds and Mitigations
The deployed AIX-based virtual machines on IBM PureApplication System types are affected. The solution is to apply the following workaround:
1. Edit the /etc/ntp.conf file to include the line:
restrict -4 default nomodify nopeer noquery notrap
restrict -6 default nomodify nopeer noquery notrap
2. Stop and restart the xntpd service:
stopsrc -s xntpd
startsrc -s xntpd
Get Notified about Future Security Bulletins
References
Change History
November 24, 2017: Original document published
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Was this topic helpful?
Document Information
Modified date:
15 June 2018
UID
swg22009301