Security Bulletin: IBM i is affected by GSKIT vulnerability CVE-2018-1388

Summary

IBM i GSKIT is vulnerable to this security vulnerability. IBM i has addressed this vulnerability.

Vulnerability Details

CVEID: CVE-2018-1388 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.

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 – 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

None