Security Bulletin
Summary
NTP (Network Time Protocol) used to synchronize the time on your Power Hardware Management Console (HMC) with a centralized NTP server. HMC has addressed the applicable CVEs.
Vulnerability Details
DESCRIPTION: NTP is vulnerable to a denial of service, caused by a flaw in ntpd. By sending a server mode packet with a spoofed source IP address, a remote attacker could exploit this vulnerability to block unauthenticated synchronization resulting in a denial of service condition.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180011 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2020-13817
DESCRIPTION: NTP is vulnerable to a denial of service, caused by an issue when relying on unauthenticated IPv4 time sources in ntpd. By predicting transmit timestamps for use in spoofed packets, a remote attacker could exploit this vulnerability to cause the daemon to crash or system time change.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183494 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H)
Affected Products and Versions
Affected Product(s) | Version(s) |
HMC V9.1.910.0 | V9.1.910.0 and later |
Remediation/Fixes
Remediation/Fixes
The following fixes are available on IBM Fix Central at: http://www-933.ibm.com/support/fixcentral/
Product
|
VRMF
|
APAR
|
Remediation/Fix
|
Power HMC
|
V9.1.940.0 SP1 ppc
|
MB04257
|
|
Power HMC
|
V9.1.940.0 SP1 x86_64
|
MB04256
|
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
29 Jul 2020: Initial Publication
*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:
22 September 2021
UID
ibm16335051