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AUSCERT External Security Bulletin Redistribution
ESB-2017.1403
Security Bulletin: Vulnerabilities in SSL affect IBM DataPower Gateways
2 June 2017
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AusCERT Security Bulletin Summary
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Product: IBM DataPower Gateways
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-3731 CVE-2016-7055
Reference: ASB-2017.0059
ESB-2017.1393
ESB-2016.2841
ESB-2016.2770
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22003793
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Security Bulletin: Vulnerabilities in SSL affect IBM DataPower Gateways
(CVE-2017-3731, CVE-2016-7055)
Document information
More support for: IBM DataPower Gateways
Software version: 7.0.0, 7.1, 7.2, 7.5, 7.5.1, 7.5.2
Operating system(s): Firmware
Reference #: 2003793
Modified date: 01 June 2017
Security Bulletin
Summary
Two potential denial of service vulnerabilities have been reported by the
OpenSSL project. IBM DataPower Gateways has addressed the applicable CVEs.
Vulnerability Details
Relevant CVE Information:
CVEID: CVE-2017-3731
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by
an out-of-bounds read when using a specific cipher. By sending specially
crafted truncated packets, a remote attacker could exploit this vulnerability
using CHACHA20/POLY1305 to cause the application to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/121312 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-2016-7055
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an
error in a Broadwell-specific Montgomery multiplication procedure. By sending
specially crafted data, a remote attacker could exploit this vulnerability
to trigger errors in public-key operations in configurations where multiple
remote clients select an affected EC algorithm and cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/118748 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)
Affected Products and Versions
CVE-2016-7055 - DataPower versions 7.2.0.0-7.2.0.13, 7.5.0.0-7.5.0.7, 7.5.1.0-7.5.1.6 and 7.5.2.0-7.5.2.6
CVE-2017-3731 - DataPower versions 7.0.0.0-7.0.0.18, 7.1.0.0-7.1.0.16, 7.2.0.0-7.2.0.13, 7.5.0.0-7.5.0.7, 7.5.1.0-7.5.1.6 and 7.5.2.0-7.5.2.6
Remediation/Fixes
Fix is available in versions 7.0.0.19, 7.1.0.17, 7.2.0.14, 7.5.0.8, 7.5.1.7,
7.5.2.7. Refer to APAR IT20690 for URLs to download the fix.
You should verify applying this fix does not cause any compatibility issues.
For DataPower customers using versions 6.x and earlier versions, IBM
recommends upgrading to a fixed, supported version/release/platform of
the product.
Workarounds and Mitigations
None
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
1 June 2017: 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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