ESB-2017.2449 - [Linux] IBM PureApplication Systems: Multiple vulnerabilities 2017-09-28

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             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

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        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

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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.

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