ESB-2019.0798 - [Win][UNIX/Linux] Power HMC: Multiple vulnerabilities 2019-03-13

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0798
          IBM Security Bulletin: Vulnerability in OpenSSL affects
                     Power Hardware Management Console
                               13 March 2019

===========================================================================

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

Product:           Power HMC
Publisher:         IBM
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service        -- Remote/Unauthenticated      
                   Access Confidential Data -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0739 CVE-2018-0732 CVE-2017-3735

Reference:         ASB-2019.0060
                   ASB-2019.0031
                   ASB-2019.0030
                   ESB-2017.2822

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10794451

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Vulnerability in OpenSSL affects Power Hardware Management Console

Product:             Power HMC

Software version:    All Versions

Operating system(s): Platform Independent

Reference #:         0794451

Security Bulletin

Summary

Linux OpenSSL is vulnerable to a denial of service, affected by CVES :
CVE-2017-3735, CVE-2018-0732, CVE-2018-0739.

Vulnerability Details

VEID: CVE-2018-0732
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the
sending of a very large prime value to the client by a malicious server during
key agreement in a TLS handshake. By spending an unreasonably long period of
time generating a key for this prime, a remote attacker could exploit this
vulnerability to cause the client to hang.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
144658 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

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 could exploit
this vulnerability to consume excessive stack memory.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
140847 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-3735
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by an error while parsing an IPAdressFamily extension in an
X.509 certificate. An attacker could exploit this vulnerability to trigger an
out-of-bounds read, resulting in an incorrect text display of the certificate.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
131047 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)

Affected Products and Versions

Power HMC V8.7.0.0
Power HMC V9.1.910.0

Remediation/Fixes

Remediation/Fixes

The following fixes are available on IBM Fix Central at: http://www-933.ibm.com
/support/fixcentral/

+------------------------------+--------------------------+--------------------------+----------------------------------+
|           Product            |           VRMF           |           APAR           |         Remediation/Fix          |
+------------------------------+--------------------------+--------------------------+----------------------------------+
|          Power HMC           |    V8.8.7. 2 PTF3 ppc    |         MB04193          |             MH01807              |
+------------------------------+--------------------------+--------------------------+----------------------------------+
|          Power HMC           |    V8.8.7. 2 PTF3 x86    |         MB04192          |             MH01806              |
+------------------------------+--------------------------+--------------------------+----------------------------------+
|          Power HMC           |    V9.1.920.0 SP1 ppc    |         MB04195          |             MH01809              |
+------------------------------+--------------------------+--------------------------+----------------------------------+
|          Power HMC           |    V9.1.920.0 SP1 x86    |         MB04194          |             MH01808              |
+------------------------------+--------------------------+--------------------------+----------------------------------+

Workarounds and Mitigations

None

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

Initial Version: 3 March 2019

*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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