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AUSCERT External Security Bulletin Redistribution
ESB-2014.0489
SOL15147: OpenSSL vulnerability CVE-2013-6449
11 April 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP LTM
BIG-IP AAM
BIG-IP AFM
BIG-IP Analytics
BIG-IP APM
BIG-IP ASM
BIG-IP GTM
BIG-IP Link Controller
BIG-IP PEM
ARX
Publisher: F5
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2013-6449
Reference: ESB-2014.0007
Original Bulletin:
http://support.f5.com/kb/en-us/solutions/public/15000/100/sol15147.html
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SOL15147: OpenSSL vulnerability CVE-2013-6449
Security AdvisorySecurity Advisory
Original Publication Date: 04/10/2014
Description
The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2
obtains a certain version number from an incorrect data structure, which
allows remote attackers to cause a denial of service (daemon crash) via
crafted traffic from a TLS 1.2 client. (CVE-2013-6449)
Impact
Remote attackers may be able to cause a denial-of-service (DoS) attack using
crafted traffic.
Status
F5 Product Development has assigned ID 442452 (BIG-IP) and ID 410742 (ARX) to
this vulnerability.
To determine if your release is known to be vulnerable, the components or
features that are affected by the vulnerability, and for information about
releases or hotfixes that address the vulnerability, refer to the following
table:
Product Versions known to Versions known to Vulnerable component
be vulnerable be not vulnerable or feature
BIG-IP LTM 11.5.0 - 11.5.1 11.0.0 - 11.4.1 Configuration utility
10.0.0 - 10.2.4 COMPAT SSL ciphers
BIG-IP AAM 11.5.0 - 11.5.1 11.4.0 - 11.4.1 Configuration utility
COMPAT SSL ciphers
BIG-IP AFM 11.5.0 - 11.5.1 11.3.0 - 11.4.1 Configuration utility
COMPAT SSL ciphers
BIG-IP Analytics 11.5.0 - 11.5.1 11.0.0 - 11.4.1 Configuration utility
COMPAT SSL ciphers
BIG-IP APM 11.5.0 - 11.5.1 11.0.0 - 11.4.1 Configuration utility
10.1.0 - 10.2.4 COMPAT SSL ciphers
BIG-IP ASM 11.5.0 - 11.5.1 11.0.0 - 11.4.1 Configuration utility
10.0.0 - 10.2.4 COMPAT SSL ciphers
BIG-IP Edge Gateway None 11.0.0 - 11.3.0 None
10.1.0 - 10.2.4
BIG-IP GTM 11.5.0 - 11.5.1 11.0.0 - 11.4.1 Configuration utility
10.0.0 - 10.2.4
BIG-IP Link Controller 11.5.0 - 11.5.1 11.0.0 - 11.4.1 Configuration utility
10.0.0 - 10.2.4 COMPAT SSL ciphers
BIG-IP PEM 11.5.0 - 11.5.1 11.3.0 - 11.4.1 Configuration utility
COMPAT SSL ciphers
BIG-IP PSM None 11.0.0 - 11.4.1 None
10.0.0 - 10.2.4
BIG-IP WebAccelerator None 11.0.0 - 11.3.0 None
10.0.0 - 10.2.4
BIG-IP WOM None 11.0.0 - 11.3.0 None
10.0.0 - 10.2.4
ARX 6.0.0 - 6.4.0 None ARX Manager GUI
Enterprise Manager None 3.0.0 - 3.1.1 None
2.1.0 - 2.3.0
FirePass None 7.0.0 None
6.0.0 - 6.1.0
BIG-IQ Cloud None 4.0.0 - 4.3.0 None
BIG-IQ Device None 4.2.0 - 4.3.0 None
BIG-IQ Security None 4.0.0 - 4.3.0 None
Recommended action
You can eliminate this vulnerability by running a version listed in the
Versions known to be not vulnerable column. If the column does not list a
version that is newer than the version you are running, then no upgrade
candidate currently exists.
To mitigate this vulnerability, you should consider the following
recommendations:
- - Limit the Configuration utility access to a trusted management network.
- - Ensure that the SSL profiles are configured to use SSL ciphers from the
NATIVE SSL stack. Starting in BIG-IP 10.2.3 and 11.0.0, commonly used cipher
strings (excluding the COMPAT string) only include ciphers from the NATIVE SSL
stack, and do not include SSL ciphers from the COMPAT SSL stack. For example,
the following cipher strings only include ciphers from the NATIVE SSL stack:
- DEFAULT
- ALL
- LOW
- MEDIUM
- HIGH
- EXP
Supplemental Information
SOL13187: COMPAT SSL ciphers are no longer included in standard cipher strings
SOL13171: Configuring the cipher strength for SSL profiles (11.x)
SOL9970: Subscribing to email notifications regarding F5 products
SOL9957: Creating a custom RSS feed to view new and updated documents.
SOL4602: Overview of the F5 security vulnerability response policy
SOL4918: Overview of the F5 critical issue hotfix policy
SOL167: Downloading software and firmware from F5
SOL13123: Managing BIG-IP product hotfixes (11.x)
SOL10025: Managing BIG-IP product hotfixes (10.x)
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The University of Queensland
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