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AUSCERT External Security Bulletin Redistribution
AIX OpenSSL Heartbleed Vulnerability CVE-2014-0160
11 April 2014
AusCERT Security Bulletin Summary
Operating System: AIX
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2014-0160
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AIX OpenSSL Heartbleed Vulnerability CVE-2014-0160
Title: Security Bulletin: AIX is affected by a vulnerability in OpenSSL
Summary: A security vulnerability has been discovered in OpenSSL.
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by an error in the TLS/DTLS heartbeat functionality. An
attacker could exploit this vulnerability to expose 64k of private memory and
retrieve secret keys. This vulnerability can be remotely exploited,
authentication is not required and the exploit is not complex. An exploit can
affect the confidentially, but not integrity or availability.
CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/92322
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Warning: We strongly encourage you to take action as soon as possible as
potential implications to your environment may be more serious than indicated
by the CVSS score.
Affected Products and Versions:
OpenSSL version 184.108.40.2060 and above in the following AIX/VIOS releases:
AIX: 5.3, 6.1, 7.1 and VIOS 2.2.*
AIX 5.3, 6.1, 7.1 and VIOS 2.2.*
OpenSSL version greater or equal to 220.127.116.110
This ifix disables the OpenSSL heartbeat option by compiling with
Note: AIX OpenSSL v0.9.8.xxxx and 12.9.8.xxxx are not vulnerable to this
After applying the fix, additional instructions are needed for CVE-2014-0160
1) Replace your SSL Certificates.
You need to revoke existing SSL certificates and reissue new certificates. You
need to be sure not to generate the new certificates using the old private key
and create a new private key (ie using "openssl genrsa") and use that new
private key to create the new certificate signing request (CSR).
2) Reset User Credentials
Users of network facing applications protected by a vulnerable version of
OpenSSL should be forced to reset their passwords and should revoke any
authentication or session related cookies set prior to the time OpenSSL was
upgraded and force the user to re-authenticate.
Warning: Your environment may require additional fixes for other products,
including non-IBM products. Please replace the SSL certificates and reset the
user credentials after applying the necessary fixes to your environment.
Workarounds and Mitigations
- - Complete CVSS Guide (http://www.first.org/cvss/cvss-guide.html)
- - On-line Calculator V2 (http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2)
- - OpenSSL Project vulnerability website (http://www.openssl.org/news/vulnerabilities.html)
- - Heartbleed (http://heartbleed.com/)
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
<10 April 2014>: Original Copy 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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