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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0985 Security Bulletin: Multiple security issues in IBM Tealeaf Customer Experience on Cloud Network Capture Add-On 18 April 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Tealeaf Customer Experience Publisher: IBM Operating System: Windows Linux variants Virtualisation Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3730 CVE-2016-9842 CVE-2016-9841 CVE-2016-9840 Reference: ESB-2017.0805 ESB-2017.0492 ESB-2017.0488.3 ESB-2017.0386.2 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg22000445 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Multiple security issues in IBM Tealeaf Customer Experience on Cloud Network Capture Add-On Security Bulletin Document information More support for: Tealeaf Customer Experience Software version: Version Independent Operating system(s): Platform Independent Reference #: 2000445 Modified date: 17 April 2017 Summary Multiple vulnerabilities in zlib and openSSL libraries can cause denial of service in IBM Tealeaf Customer Experience on Cloud Network Capture Add-On. Vulnerability Details CVEID: CVE-2016-9840 DESCRIPTION: zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service. CVSS Base Score: 3.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120508 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) CVEID: CVE-2016-9841 DESCRIPTION: zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service. CVSS Base Score: 3.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120509 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) CVEID: CVE-2016-9842 DESCRIPTION: zlib is vulnerable to a denial of service, caused by an undefined left shift of negative number. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service. CVSS Base Score: 3.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120510 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) CVEID: CVE-2017-3730 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference. By sending specially crafted parameters for a DHE or ECDHE key exchange, 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/121311 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 Tealeaf Customer Experience on Cloud Network Capture Add-On. Remediation/Fixes Client Success Portal: https://tealeaf.support.ibmcloud.com/ics/support/DLList.asp?task=download&folderID=121267 Workarounds and Mitigations Access to local networks containing networked Tealeaf servers should be limited to avoid unauthorized access to or disruption of Tealeaf services. Access to PCA systems should be limited as much as possible. References Complete CVSS v3 Guide On-line Calculator v3 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 17 April 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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