Security Bulletin
Summary
IBM Flex System FC43171 8Gb SAN Switch and SAN Pass-thru, QLogic 8Gb Intelligent Pass-thru Module & SAN Switch Module for BladeCenter and QLogic Virtual Fabric Extension Module for IBM BladeCenter have addressed the following vulnerabilities in NTP.
Vulnerability Details
Summary
IBM Flex System FC3171 8Gb SAN Switch and SAN Pass-thru, QLogic 8Gb Intelligent Pass-thru Module & SAN Switch Module for BladeCenter and QLogic Virtual Fabric Extension Module for IBM BladeCenter have addressed the following vulnerabilities in NTP.
Vulnerability Details:
CVEID: CVE-2016-4954
Description: NTP is vulnerable to a denial of service, caused by the improper handling of packets. By sending spoofed server packets with correct origin timestamps, a remote attacker could exploit this vulnerability to cause a false leap indication to be set.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113697
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-4955
Description: NTP is vulnerable to a denial of service, caused by the improper handling of packets. By sending spoofed CRYPTO_NAK or a bad MAC packets with correct origin timestamps, a remote attacker could exploit this vulnerability to cause the autokey association to reset.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113698
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-4953
Description: NTP is vulnerable to a denial of service, caused by the improper handling of packets. By sending specially crafted CRYPTO_NAK packets to an ephemeral peer target prior to a response being sent, a remote attacker could exploit this vulnerability to demobilize the ephemeral association.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113696
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-4956
Description: NTP is vulnerable to a denial of service, caused by the failure to cover broadcast associations. A remote attacker could exploit this vulnerability to cause broadcast clients to flip into interleave mode.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113699
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-4957
Description: NTP is vulnerable to a denial of service, caused by the improper handling of packets. By sending specially crafted CRYPTO_NAK packets, an attacker could exploit this vulnerability to cause ntpd to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113695
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Product | Affected Version |
|---|---|
| IBM Flex System FC3171 8Gb SAN Switch and SAN Pass-thru Firmware | 9.1 |
| QLogic 8Gb Intelligent Pass-thru Module & SAN Switch Module for BladeCenter | 7.10 |
| QLogic Virtual Fabric Extension Module for IBM BladeCenter | 9.0 |
Remediation/Fixes:
Firmware fix versions are available on Fix Central:
http://www.ibm.com/support/fixcentral/.
| Product | Fix Version |
|---|---|
| IBM Flex System FC3171 8Gb SAN Switch and SAN
Pass-thru Firmware qlgc_fw_flex_9.1.9.02.00_anyos_noarch |
9.1.9.02.00 |
| QLogic 8Gb Intelligent Pass-thru Module & SAN
Switch Module for BladeCenter qlgc_fw_bcsw_7.10.1.40.00_anyos_noarch |
7.10.1.40.00 |
| QLogic Virtual Fabric Extension Module for IBM
BladeCenter qlgc_fw_bcsw_9.0.3.19.00_anyos_noarch |
9.0.3.19.00 |
You should verify applying the fix does not cause any compatibility issues.
Workaround(s) & Mitigation(s):
None
References:
Related Information:
IBM
Secure Engineering Web Portal
IBM Product Security
Incident Response Blog
Lenovo
Product Security Advisories
Acknowledgement
None
Change History
07 February 2017: Original Copy Published
09 February 2017: Revised CVE-ID to CVEID and changed http to https
in Vulnerability Details section.
* 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.
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References
*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.
Document Location
Worldwide
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Document Information
Modified date:
14 April 2023
UID
ibm1MIGR-5099498