Security Bulletin: A vulnerability in OpenSSH affects PowerKVM

2018-07-0623:59:00

www.ibm.com

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

JSON

Summary

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

Vulnerability Details

CVEID: CVE-2017-15906 DESCRIPTION: OpenSSH is vulnerable to a denial of service, caused by an error in the process_open() function when in read-only mode. A remote authenticated attacker could exploit this vulnerability to create zero-length files and cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/133128 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

PowerKVM 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 14.