Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2016.1645
Security Bulletin: Vulnerability in Open Source GNU glibc affects IBM OS
Images for Red Hat Linux Systems (CVE-2015-5277)
1 July 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM OS Image for Red Hat Linux Systems
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2015-5277
Reference: ESB-2015.2903
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21986400
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Vulnerability in Open Source GNU glibc affects IBM OS
Images for Red Hat Linux Systems (CVE-2015-5277)
Security Bulletin
Document information
More support for:
PureApplication System
Software version:
2.0, 2.0.0.1, 2.1.0.0, 2.1.0.1, 2.1.0.2, 2.1.1.0, 2.1.2.0, 2.1.2.1, 2.1.2.2,
2.1.2.3
Operating system(s):
AIX, Linux, Windows
Reference #:
1986400
Modified date:
2016-06-30
Summary
A vulnerability in Open Source GNU glibc affects IBM OS Images for Red Hat
Linux Systems.
Vulnerability Details
CVEID:
CVE-2015-5277
DESCRIPTION:
GNU C Library (glibc) could allow a local attacker to gain elevated
privileges on the system, caused by a heap corruption error in the nss_files
backend for the Name Service Switch. An attacker could exploit this
vulnerability to execute arbitrary code on the system with elevated
privileges.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108484
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Affected Products and Versions
IBM OS Image for Red Hat Linux Systems 2.0
IBM OS Image for Red Hat Linux Systems 2.0.0.1
IBM OS Image for Red Hat Linux Systems 2.0.0.2
IBM OS Image for Red Hat Linux Systems 2.0.0.3
IBM OS Image for Red Hat Linux Systems 2.0.0.4
IBM OS Image for Red Hat Linux Systems 2.1.0.0
IBM OS Image for Red Hat Linux Systems 2.1.0.1
IBM OS Image for Red Hat Linux Systems 2.1.0.2
IBM OS Image for Red Hat Linux Systems 2.1.2.0
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.
https://www-945.ibm.com/support/fixcentral/swg/downloadFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=All&platform=All&function=fixId&fixids=glibc_patch_Feb_2016&includeRequisites=1&includeSupersedes=0
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.
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.
You should verify applying this fix does not cause any compatibility issues.
Information regarding the Red Hat Enterprise Linux Life Cycle is available at
Red Hat Enterprise Linux Security Patching for IBM OS images for Red Hat
Linux
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
Subscribe to
My Notifications
to be notified of important product support alerts like this.
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
None
Change History
29 June 2016: 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. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=4tL7
-----END PGP SIGNATURE-----