Security Bulletin: Vulnerability CVE-2017-15906 in OpenSSH affects IBM i

Summary

OpenSSH is used by IBM i. IBM i has addressed the applicable CVE.

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

Releases 7.1, 7.2 and 7.3 of IBM i are affected.

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i.

Releases 7.1, 7.2 and 7.3 of IBM i are supported and will be fixed.

http://www-933.ibm.com/support/fixcentral/

The IBM i PTF numbers are:

Release 7.1 – SI66253 Release 7.2 & 7.3 – SI66254

_Important note: _IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None