Security Bulletin: Vulnerabilities in NTP affect IBM Chassis Management Module

Vulnerability Details

Summary

IBM Chassis Management Module has addressed the following vulnerabilities in NTP.

Vulnerability Details:

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)

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-2017-6460

Description: NTP is vulnerable to a denial of service, caused by a stack-based buffer overflow in ntpq. By sending a specially crafted request, a remote authenticated attacker could overflow a buffer and cause the application to crash.

CVSS Base Score: 4.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123618 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-2017-6458

Description: NTP is vulnerable to a denial of service, caused by multiple buffer overflows in the ctl_put() functions. By sending an overly long string argument, a remote authenticated attacker could exploit this vulnerability to overflow a buffer and cause the application to crash.

CVSS Base Score: 4.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123616 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-2016-9042

Description: NTP is vulnerable to a denial of service, caused by an error in the origin timestamp check functionality. By sending specially crafted packets, a remote authenticated attacker could exploit this vulnerability to cause the application to crash.

CVSS Base Score: 4.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123619 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes:

Firmware fix versions are available on Fix Central:
http://www.ibm.com/support/fixcentral/.

Workaround(s) & Mitigation(s):

None

References:

• Complete CVSS v3 Guide
• On-line Calculator v3

Related Information:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Lenovo Product Security Advisories

Acknowledgement

None

Change History
09 November 2017: Original Copy 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.