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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2449 Security Bulletin: Open Source GNU glibc Vulnerabilities which is used by IBM OS Images for RedHat Linux in IBM PureApplication Systems (CVE-2017-1000366) 28 September 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM PureApplication Systems Publisher: IBM Operating System: Linux variants Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-1000366 Reference: ESB-2017.2198 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg22008527 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Open Source GNU glibc Vulnerabilities which is used by IBM OS Images for RedHat Linux in IBM PureApplication Systems (CVE-2017-1000366) Document information More support for: PureApplication System Security Software version: 2.2.2.0, 2.2.2.1, 2.2.2.2, 2.2.3.0, 2.2.3.1, 2.2.3.2 Operating system(s): Linux Reference #: 2008527 Modified date: 27 September 2017 Security Bulletin Summary There are vulnerabilities in the Open Source GNU glibc that is used by the OS Images for IBM PureApplication Software Suite, IBM Bluemix Local System and IBM PureApplication System/Software Vulnerability Details CVEID: CVE-2017-1000366 DESCRIPTION: Glibc could allow a local attacker to execute arbitrary code on the system, caused by a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack. By using specially-crafted crafted LD_LIBRARY_PATH values, an attacker could exploit this vulnerability to trigger a stack memory allocation flaw and execute arbitrary code on the system. CVSS Base Score: 7.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127452 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions IBM OS Image for Red Hat Linux Systems 2.1.5.0 IBM OS Image for Red Hat Linux Systems 2.1.6.0 IBM OS Image for Red Hat Linux Systems 2.1.7.0 IBM OS Image for Red Hat Linux Systems 2.1.8.0 IBM OS Image for Red Hat Linux Systems 3.0.5.0 IBM OS Image for Red Hat Linux Systems 3.0.6.0 IBM OS Image for Red Hat Linux Systems 3.0.7.0 Remediation/Fixes The deployed Red Hat Linux-based virtual machines on IBM PureApplication System types are affected. The solution is to apply the following emergency fix to the deployed virtual machines. Download update: http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.3.2&platform=All&function=fixId&fixids=glibc_patch_Sept_2017-sys&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp&source=fc 1. Import the fix into the Emergency Fix catalogue. 2. For deployed instances, apply this emergency fix on the VM. The glibc library on the IBM OS Image for Red Hat Linux Systems will be updated to contain the fix. 3. Restart the deployed instance after the fix is applied. 4. Verify that this fix does not cause any compatibility issues. Optionally, the operating system vendor provides a glibc fix. The fix can be applied by running the command yum update glibc within the deployed virtual machine to upgrade to the latest glibc version. 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 September 22, 2017: Original document 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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