Security Bulletin: IBM i is affected by GSKIT vulnerability CVE-2018-1388
IBM i GSKIT is vulnerable to this security vulnerability. IBM i has addressed this vulnerability.
DESCRIPTION: GSKit V7 may disclose side channel information via discrepencies between valid and invalid PKCS#1 padding.
CVSS Base Score: 9.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/138212 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
Affected Products and Versions
Releases 7.1, 7.2 and 7.3 of IBM i are affected.
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.
The IBM i PTF numbers are:
Release 7.1 – MF64537
Release 7.2 – MF64536
Release 7.3 – MF64534
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
Get Notified about Future Security Bulletins
ReferencesComplete CVSS v3 Guide
On-line Calculator v3
Related informationIBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
*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.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
|Operating System||IBM i 7.3|
|Operating System||IBM i 7.2|
|Operating System||IBM i 7.1|
More support for:
Software version: 7.1, 7.2, 7.3
Operating system(s): IBM i
Reference #: N1022451
Modified date: 06 February 2018
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