Security Bulletin: A vulnerability in authconfig affects PowerKVM

Summary

PowerKVM is affected by a vulnerability in authconfig. IBM has now addressed this vulnerability.

Vulnerability Details

CVEID: CVE-2017-7488**
DESCRIPTION:** Authconfig could allow a remote attacker to obtain sensitive information, caused by a flaw when using SSSD to perform authentication. By using SSSD to authenticate against remote server, an attacker could exploit this vulnerability to obtain information about existing usernames.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/126071 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:N

Affected Products and Versions

PowerKVM 2.1 and 3.1

Remediation/Fixes

Customers can update PowerKVM systems by using “yum update”.

Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw. This issue is addressed starting with v3.1.0.2 update 10.

For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed starting with PowerKVM 2.1.1.3-65 update 19. Customers running v2.1 are, in any case, encouraged to upgrade to v3.1.

For v2.1 systems currently running fix levels of PowerKVM prior to 2.1.1, please see <http://download4.boulder.ibm.com/sar/CMA/OSA/05e4c/0/README&gt; for prerequisite fixes and instructions.

Workarounds and Mitigations

none