Security Bulletin : Multiple vulnerabilities in IBM GSKit affect IBM Host On-Demand.

Summary

GSKit is an IBM component that is used by Host On-Demand. GSKit that is shipped with Host On-Demand contains multiple security vulnerabilities .Host On-Demand has addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2018-1426 **DESCRIPTION:*IBM GSKit duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material.
CVSS Base Score: 7.4
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/139071for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2018-1427 **DESCRIPTION:*IBM GSKit contains several environment variables that a local attacker could overflow and cause a denial of service.
CVSS Base Score: 6.2
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/139072for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2018-1428 **DESCRIPTION:*IBM GSKit uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
CVSS Base Score: 6.2
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/139073for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2017-3736 **DESCRIPTION:*OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagation flaw in the x86_64 Montgomery squaring function bn_sqrx8x_internal(). An attacker with online access to an unpatched system could exploit this vulnerability to obtain information about the private key.
CVSS Base Score: 5.9
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/134397for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2017-3732 **DESCRIPTION:*OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagating bug in the x86_64 Montgomery squaring procedure. An attacker could exploit this vulnerability to obtain information about the private key.
CVSS Base Score: 5.3
CVSS Temporal Score: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/121313for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2016-0705 **DESCRIPTION: *OpenSSL is vulnerable to a denial of service, caused by a double-free error when parsing DSA private keys. An attacker could exploit this vulnerability to corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See: <https://exchange.xforce.ibmcloud.com/vulnerabilities/111140&gt; 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

Affected Products and Versions

Host On-Demand 13.0

Host On-Demand 12.0, 12.0.0.1, 12.0.1, 12.0.2, 12.0.3

Remediation/Fixes

Product

|

VRMF

|

Remediation

—|—|—

Host On-Demand

|

12.0

|

Upgrade to Host On-Demand 12.0.4

Host On-Demand

|

12.0.0.1

|

Upgrade to Host On-Demand 12.0.4

Host On-Demand

|

12.0.1

|

Upgrade to Host On-Demand 12.0.4

Host On-Demand

|

12.0.2

|

Upgrade to Host On-Demand 12.0.4

Host On-Demand

|

12.0.3

|

Upgrade to Host On-Demand 12.0.4

Host On-Demand

|

13.0

|

Upgrade to Host On-Demand 13.0.1

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

13 July 2018: Original version published

*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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. “Affected Products and Versions” referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

[{“Business Unit”:{“code”:“BU058”,“label”:“IBM Infrastructure w/TPS”},“Product”:{“code”:“SSS9FA”,“label”:“IBM Host On-Demand”},“Component”:“GSKit”,“Platform”:[{“code”:“PF002”,“label”:“AIX”},{“code”:“PF016”,“label”:“Linux”},{“code”:“PF033”,“label”:“Windows”}],“Version”:“12.0.0;12.0.0.1;12.0.1;12.0.2;12.0.3;13.0.0”,“Edition”:“”,“Line of Business”:{“code”:“LOB35”,“label”:“Mainframe SW”}}]