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AUSCERT External Security Bulletin Redistribution
ESB-2017.2564
Security Bulletin: IBM Notes is affected by Open Source
XStream Vulnerabilities
12 October 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Notes
Publisher: IBM
Operating System: Linux variants
OS X
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-7957
Reference: ESB-2017.2462
ESB-2017.2356
ESB-2017.2276
ESB-2017.1991
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22004066
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Security Bulletin: IBM Notes is affected by Open Source XStream
Vulnerabilities
Security Bulletin
Document information
More support for: IBM Notes
Security
Software version: 8.5.1.5, 8.5.2.4, 8.5.3.6, 9.0, 9.0.1.8
Operating system(s): Linux, OS X, Windows
Reference #: 2004066
Modified date: 11 October 2017
Summary
An open source library XStream is vulnerable to a denial of service, caused by
the improper handling of attempts to create an instance of the primitive type
'void' during unmarshalling. A remote attacker could exploit this
vulnerability to cause the application to crash. IBM Notes consumes Open
Source XStream library. IBM Notes has addressed these vulnerabilities
Vulnerability Details
CVEID: CVE-2017-7957
DESCRIPTION: XStream is vulnerable to a denial of service, caused by the
improper handling of attempts to create an instance of the primitive type
'void' during unmarshalling. A remote attacker could exploit this
vulnerability to cause the application to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/125800 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
IBM Notes 9.0.1 to 9.0.1 FP8.
IBM Notes 9.0 to 9.0 IF4.
IBM Notes 8.5.3 to 8.5.3 FP6 IF14
IBM Notes 8.5.2 to 8.5.2 FP4 IF3
IBM Notes 8.5.1 to 8.5.1 FP5 IF3
IBM Notes 8.5 release
Remediation/Fixes
Product Version Link
IBM Notes 9.0.1 FP9 https://www-01.ibm.com/support/docview.wss?uid=swg24037141
IBM Notes 8.5.3 FP6 IF15 http://www-01.ibm.com/support/docview.wss?uid=swg21663874
IBM Notes MAC 64 901 MAC 64 IF12 http://www-01.ibm.com/support/docview.wss?uid=swg21657963
Customers who remain on the following releases may open a Service Request with
IBM Support and reference SPR PPUEAMNDJ4.
IBM Notes 9.0.1 to 9.0.1 FP8.
IBM Notes 9.0 to 9.0 IF4.
IBM Notes 8.5.2 to 8.5.2 FP4 IF3
IBM Notes 8.5.1 to 8.5.1 FP5 IF3
IBM Notes 8.5 release
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
11 October 2017: Original Publication
*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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