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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1796 SOL16920: OpenSSL vulnerability CVE-2014-8176 8 July 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-8176 Reference: ASB-2015.0065 ESB-2015.1699 ESB-2015.1569 ESB-2015.1561 ESB-2015.1557 ESB-2015.1540 ESB-2015.1544.2 Original Bulletin: https://support.f5.com/kb/en-us/solutions/public/16000/900/sol16920.html - --------------------------BEGIN INCLUDED TEXT-------------------- SOL16920: OpenSSL vulnerability CVE-2014-8176 Security Advisory Original Publication Date: 07/07/2015 Description The dtls1_clear_queues function in ssl/d1_lib.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h frees data structures without considering that application data can arrive between a ChangeCipherSpec message and a Finished message, which allows remote DTLS peers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unexpected application data. (CVE-2014-8176) Impact A malicious Datagram Transport Layer Security (DTLS) client or server can send a specially crafted message to the peer, which may cause the application to stop responding or can result in arbitrary code execution. Status F5 Product Development has assigned ID 527641 (BIG-IP) 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 Severity Vulnerable component or feature BIG-IP LTM 11.5.0 - 11.5.1 11.6.0 , 11.5.2 - 11.5.3, 11.5.1 HF3 High Control plane: 11.5.0 HF4, 11.0.0-11.4.1, The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 10.1.0 - 10.2.4 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Data plane: 11.0.0 - 11.4.1 11.5.0 HF4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. 10.1.0 - 10.2.4 BIG-IP AAM 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Control plane: 11.5.0 HF4, 11.0.0 - 11.4.1, The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 10.1.0 - 10.2.4 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Data plane: 11.0.0 - 11.4.1 11.5.0 HF4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. 10.1.0 - 10.2.4 BIG-IP AFM 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Control plane: 11.5.0 HF4, 11.3.0 - 11.4.1 The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Data plane: 11.3.0 - 11.4.1 11.5.0 HF4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. BIG-IP 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Control plane: Analytics 11.5.0 HF4, 11.0.0 - 11.4.1 The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. BIG-IP APM 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Control plane: 11.5.0 HF4, 11.0.0 - 11.4.1, The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 10.1.0 - 10.2.4 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Data plane: 11.0.0 - 11.4.1 11.5.0 HF4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. 10.1.0 - 10.2.4 BIG-IP ASM 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3 High Control plane: 11.5.0 HF4, 11.0.0 - 11.4.1 The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 10.1.0 - 10.2.4 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Data plane: 11.0.0 - 11.4.1 11.5.0 HF4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. 10.1.0 - 10.2.4 BIG-IP Edge 11.0.0 - 11.3.0 None High Data plane: Gateway 10.1.0 - 10.2.4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. BIG-IP GTM 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Control plane: 11.5.0 HF4, 11.0.0 - 11.4.1 The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 10.1.0 - 10.2.4 BIG-IP Link 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3 High Control plane: Controller 11.5.0 HF4, 11.0.0 - 11.4.1, The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 10.1.0 - 10.2.4 BIG-IP PEM 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Control plane: 11.5.0 HF4, 11.3.0 - 11.4.1 The BIG-IP sod daemon is vulnerable if using Common Criteria mode, or when the failover.secure* database variable is enabled. 11.5.0 - 11.5.1 11.6.0, 11.5.2 - 11.5.3, 11.5.1 HF3, High Data plane: 11.3.0 - 11.4.1 11.5.0 HF4 UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. BIG-IP PSM 11.0.0 - 11.4.1 10.1.0 - 10.2.4 None High Data plane: UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. BIG-IP WebAccelerator 11.0.0 - 11.3.0 10.1.0 - 10.2.4 None High Data plane: UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. BIG-IP WOM 11.0.0 - 11.3.0 10.1.0 - 10.2.4 None High Data plane: UDP virtual servers using Client SSL or Server SSL profiles that enable with COMPAT ciphers are vulnerable. Note: As of February 17, 2015, AskF5 Security Advisory articles include the Severity value. Security Advisory articles published before this date do not list a Severity value. * The failover.secure system database variable is only available in BIG-IP 11.5.0 and later, and is disabled by default. However, Common Criteria mode enables the failover.secure database variable. 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 listed version is older than the version you are currently running, or if the table does not list any version in the column, then no upgrade candidate currently exists. F5 responds to vulnerabilities in accordance with the Severity values published in the previous table. The Severity values and other security vulnerability parameters are defined in SOL4602: Overview of the F5 security vulnerability response policy. BIG-IP To mitigate this vulnerability for vulnerable BIG-IP versions, you can disable the failover.secure system database variable to prevent exposure. For UDP virtual servers using Client SSL or Server SSL profiles, the system is only vulnerable to this issue when configured with COMPAT ciphers. For more information about SSL profiles and cipher configuration, refer to the following articles: SOL13187: COMPAT SSL ciphers are no longer included in standard cipher strings SOL13171: Configuring the cipher strength for SSL profiles (11.x) Supplemental Information SOL9970: Subscribing to email notifications regarding F5 products SOL9957: Creating a custom RSS feed to view new and updated documents SOL4918: Overview of the F5 critical issue hotfix policy SOL167: Downloading software and firmware from F5 SOL13123: Managing BIG-IP product hotfixes (11.x) SOL9502: BIG-IP hotfix matrix - --------------------------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 iQIVAwUBVZzBIn6ZAP0PgtI9AQJTpg//Q1dgeYeHBMGgRdI+cgbZjBhTwz+o17Py MVZ5OPkz3pdQ4MWNDf5gSkwn2R8W33zf8RaVW7SbqNKfpRNSquvBd7e0ilCAXQnt 6vAvTJyrGgW+4L7hSPF461lV5oZQP0YzhRgarfwpDxIdDohbPspXZ83/40mfObRs DyJ1QiJlxy5TFrJkNStU+HotfkCYn9AqH7lY8jlZcmzd6SgVXf4fWbYlKwME4JCj ZYyxiln3LEPFwIiXESx+F96o+8aeCPphNzBlMtF7PisBFV47mJpg0MAR8Xx2pm52 tW7dKeChhK77ag2aayNGk2S5DUPH+sJkW8n6fM8tYssPrp3QpTTezUKlJvz2/50c 50ALoACMlhHCbq8A4yYYvr2skTJsxJCl9f5P60gOA0U79a08k/f91JvKfg1bQIb6 808SarKMoTbykXvfZqgKekzLXIJ/kRYwK3E5P1cKskCjZZpRpgsiagFVE1S9+PgH 08r/nfJaWSrxVuuxvZUy9E2yKsfVOHUHPSC7dcMt5RecVhiv8xvOo67kke11/t9N NPrVAJoFxYKHSaZN9a1rgnrOq1Xiog8yDMdNDpSfzPK7658ESa4QyAGYm5vaUBo0 b0yYkPRk0Wv7bOjnzEDHHgyJroAjLKm8PWKtEfb7aBaNn9jo/cbHkoFvG2Hj//Fp I9HzDqMEGhI= =6R3x -----END PGP SIGNATURE-----