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AUSCERT External Security Bulletin Redistribution
Security Bulletin: Open Source GNU glibc Vulnerabilities which is used by
IBM OS Images for RedHat Linux in IBM PureApplication
28 September 2017
AusCERT Security Bulletin Summary
Product: IBM PureApplication Systems
Operating System: Linux variants
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
CVE Names: CVE-2017-1000366
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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)
More support for:
126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124
27 September 2017
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
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
CVSS Base Score: 7.4
CVSS Temporal Score: See
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 126.96.36.199
IBM OS Image for Red Hat Linux Systems 188.8.131.52
IBM OS Image for Red Hat Linux Systems 184.108.40.206
IBM OS Image for Red Hat Linux Systems 220.127.116.11
IBM OS Image for Red Hat Linux Systems 18.104.22.168
IBM OS Image for Red Hat Linux Systems 22.214.171.124
IBM OS Image for Red Hat Linux Systems 126.96.36.199
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.
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
Complete CVSS v3 Guide
On-line Calculator v3
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
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.
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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