Security Bulletin
Summary
Vulnerabilities in Docker that is used by IBM InfoSphere Information Server are addressed.
Vulnerability Details
DESCRIPTION: Docker Docker CE is vulnerable to a man-in-the-middle attack, caused by improper validation of router advertisements. By sending rogue router advertisements, an attacker could exploit this vulnerability using man-in-the-middle techniques to gain access to the communication channel between endpoints to obtain sensitive information or further compromise the system.
CVSS Base score: 6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/182750 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L)
CVEID: CVE-2021-21285
DESCRIPTION: Docker is vulnerable to a denial of service, caused by improper input validation. By persuading a victim to pull a specially-crafted Docker image, a remote attacker could exploit this vulnerability to cause the dockerd daemon to crash, and results in a denial of service condition.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196049 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-21284
DESCRIPTION: Docker could allow a remote authenticated attacker to gain elevated privileges on the system, caused by a flaw when using the --userns-remap option. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges as root on the system.
CVSS Base score: 8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196047 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| InfoSphere Information Server with a microservices tier | 11.7 |
Remediation/Fixes
| Product | VRMF |
APAR |
Remediation/First Fix |
|
InfoSphere Information Server, Information Server on Cloud |
11.7 |
--Apply InfoSphere Information Server version 11.7.1.0 |
Contact Technical Support:
In the United States and Canada dial 1-800-IBM-SERV
View the support contacts for other countries outside of the United States.
Electronically open a Service Request with Information Server Technical Support.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
01 Apr 2021: 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
Was this topic helpful?
Document Information
Modified date:
01 April 2021
UID
ibm16437021