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AUSCERT External Security Bulletin Redistribution
ESB-2014.1393
sol15461: OpenSSL Vulnerability CVE-2011-4619
14 August 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP LTM
F5 BIG-IP AAM
F5 BIG-IP AFM
F5 BIG-IP Analytics
F5 BIG-IP APM
F5 BIG-IP ASM
F5 BIG-IP Edge Gateway
F5 BIG-IP GTM
F5 BIG-IP Link Controller
F5 BIG-IP PEM
F5 BIG-IP PSM
F5 BIG-IP WebAccelerator
F5 BIG-IP WOM
ARX
Enterprise Manager
Publisher: F5
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2011-4619
Reference: ESB-2014.0353
ESB-2013.1402
ESB-2013.0789
ESB-2012.0082
ESB-2012.0062
ESB-2012.0027
Original Bulletin:
http://support.f5.com/kb/en-us/solutions/public/15000/400/sol15461.html
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sol15461: OpenSSL Vulnerability CVE-2011-4619
Security Advisory
Original Publication Date: 08/13/2014
Description
The Server Gated Cryptography (SGC) implementation in OpenSSL before 0.9.8s
and 1.x before 1.0.0f does not properly handle handshake restarts, which
allows remote attackers to cause a denial of service (CPU consumption) via
unspecified vectors. (CVE-2011-4619)
Impact
This vulnerability could allow a remote attacker to perform a
denial-of-service (DoS) attack, and have other unspecified impact on the
system.
Status
F5 Product Development has assigned ID 467002 (BIG-IP and Enterprise Manager)
and ID 410742 (ARX) to this vulnerability, and has evaluated the currently
supported releases for potential 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 be vulnerable Versions known to be not vulnerable Vulnerable component or feature
BIG-IP LTM 11.0.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
10.0.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.5.1 Configuration utility with SGC certificate
10.0.0 - 10.2.4
BIG-IP AAM 11.4.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
BIG-IP AFM 11.3.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
BIG-IP 11.0.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
Analytics 11.0.0 - 11.1.0 11.2.0 - 11.5.1 Configuration utility with SGC certificate
BIG-IP APM 11.0.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
10.1.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.5.1 Configuration utility with SGC certificate
10.1.0 - 10.2.4
BIG-IP ASM 11.0.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
10.0.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.5.1 Configuration utility with SGC certificate
10.0.0 - 10.2.4
BIG-IP Edge 11.0.0 - 11.3.0 None COMPAT ciphers with SGC certificates
Gateway 10.1.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.3.0 Configuration utility with SGC certificate
10.1.0 - 10.2.4
BIG-IP GTM 11.0.0 - 11.1.0 11.2.0 - 11.5.1 Configuration utility with SGC certificate
10.0.0 - 10.2.4
BIG-IP Link 11.0.0 - 11.1.0 11.2.0 - 11.5.1 Configuration utility with SGC certificate
Controller 10.0.0 - 10.2.4
BIG-IP PEM 11.3.0 - 11.4.1 11.5.0 - 11.5.1 COMPAT ciphers with SGC certificates
BIG-IP PSM 11.0.0 - 11.4.1 None COMPAT ciphers with SGC certificates
10.0.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.4.1 Configuration utility with SGC certificate
10.0.0 - 10.2.4
BIG-IP 11.0.0 - 11.3.0 None COMPAT ciphers with SGC certificates
WebAccelerator 10.0.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.3.0 Configuration utility with SGC certificate
10.0.0 - 10.2.4
BIG-IP WOM 11.0.0 - 11.3.0 None COMPAT ciphers with SGC certificates
10.0.0 - 10.2.4
11.0.0 - 11.1.0 11.2.0 - 11.3.0 Configuration utility with SGC certificate
10.0.0 - 10.2.4
ARX 6.0.0 - 6.4.0 None GUI with SGC Certificate
Enterprise 3.0.0 3.1.0 - 3.1.1 Configuration utility with SGC certificate
Manager 2.1.0 - 2.3.0
Recommended action
If the previous table lists a version in the Versions known to be not
vulnerable column, you can eliminate this vulnerability by upgrading to the
listed version. If the table does not list any version in the column, then no
upgrade candidate currently exists.
Note: SGC certificates are considered obsolete and are typically used only to
support 128-bit SSL in browsers released before the year 2000.
BIG-IP 11.x
To mitigate this vulnerability on virtual servers, you can configure your SSL
profile to use the NATIVE cipher suite. To do so, refer to SOL13171 referenced
in the Supplemental Information section below. You may also avoid using SGC
Certificates.
To mitigate this vulnerability in the BIG-IP Configuration utility you can
avoid using SGC certificates.
BIG-IP 10.x
To mitigate this vulnerability on virtual servers, you can configure your
SSL profile to use the NATIVE cipher suite. To do so, refer to SOL7815
referenced in the Supplemental Information section below. You may also
avoid using SGC Certificates.
To mitigate this vulnerability in the BIG-IP Configuration utility you can
avoid using SGC certificates.
Enterprise Manager
To mitigate this vulnerability in the Enterprise Manger Configuration utility
you can avoid using SGC certificates.
ARX
To mitigate this vulnerability in the ARX GUI you can avoid using SGC
certificates.
Supplemental Information
SOL4949: Configuring BIG-IP LTM to use a Step-Up or Server Gated
Cryptography (SGC) certificate
SOL8802: Using SSL ciphers with BIG-IP Client SSL and Server SSL profiles
SOL7815: Configuring the cipher strength for SSL profiles (9.x - 10.x)
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
SOL167: Downloading software and firmware from F5
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