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AUSCERT External Security Bulletin Redistribution
ESB-2018.2241
Security Bulletin : Multiple vulnerabilities in IBM GSKit
affect IBM Host On-Demand.
2 August 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Host On-Demand
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1428 CVE-2018-1427 CVE-2018-1426
CVE-2017-3736 CVE-2017-3732 CVE-2016-0705
Reference: ASB-2018.0170
ASB-2018.0093
ASB-2018.0092
ASB-2018.0088
ASB-2018.0086
ASB-2018.0083
ASB-2018.0081
Original Bulletin:
https://www-01.ibm.com/support/docview.wss?uid=ibm10716977
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Security Bulletin : Multiple vulnerabilities in IBM GSKit affect IBM Host
On-Demand.
Document information
More support for: Rational Host On-Demand
Software version: 12.0.0, 12.0.0.1, 12.0.1, 12.0.2, 12.0.3, 13.0.0
Operating system(s): AIX, Linux, Windows
Reference #: 0716977
Modified date: 01 August 2018
Security Bulletin
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: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
139071 for 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: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
139072 for 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: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
139073 for 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: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
134397 for 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: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
121313 for 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 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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Reference
Complete CVSS v3 Guide
On-line Calculator v3
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.
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