ESB-2018.3899 - [Win] IBM Security Identity Manager: Denial of service - Remote/unauthenticated 2018-12-17

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3899
                      OpenSSL ASN.1 denial of service
                             17 December 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Security Identity Manager
Publisher:         IBM
Operating System:  Windows
                   z/OS
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0739  

Reference:         ASB-2018.0264
                   ASB-2018.0259
                   ASB-2018.0177
                   ASB-2018.0171
                   ASB-2018.0162

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10733669

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Security Bulletin: OpenSSL ASN.1 denial of service

Security Bulletin

Document information

More support for: IBM Security Identity Manager

Component: Adapters

Software version: 6.0, 7.0

Operating system(s): Platform Independent

Reference #: 0733669

Modified date: 16 December 2018

Summary

The Windows and z/OS Security Identity Adapters are now upgraded to a more
current release to correct CVE (CVE-2018-0739) "OpenSSL ASN.1 denial of
service".

Vulnerability Details

CVEID: CVE-2018-0739

Description: OpenSSL is vulnerable to a denial of service. By sending specially
crafted ASN.1 data with a recursive definition, a remote attacker can exploit
this vulnerability to consume excessive stack memory.

CVSS Base Score: 5.3
CVSS Temporal Score: For the current score, see https://
exchange.xforce.ibmcloud.com/vulnerabilities/140847
CVSS Environmental Score*: CVSS 3.0 Temporal Score
CVSS Vector: (CVSS:5.3/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM Security Identity Manager v6.0 Adapters for Windows and z/OS platforms
Security Identity Adapters v7.x for Windows and z/OS platforms

Remediation/Fixes

Obtain the latest GA levels of 6.0 or 7.x adapters, as found on the Fix Link
pages listed below:

  o IBM Security Identity Adapters v6.0
  o IBM Security Identity Adapters v7.0

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
alerts like this.

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM 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.

Disclaimer

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.

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