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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0895.2 K18549143: OpenSSL vulnerability CVE-2019-1559 4 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OpenSSL Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-1559 Reference: ESB-2019.0799 ESB-2019.0751 ESB-2019.0649 ESB-2019.0630 Original Bulletin: https://support.f5.com/csp/article/K18549143 Revision History: April 4 2019: Updated with latest publication March 20 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K18549143:OpenSSL vulnerability CVE-2019-1559 Security Advisory Original Publication Date: 20 Mar, 2019 Latest Publication Date: 04 Apr, 2019 Security Advisory Description If an application encounters a fatal protocol error and then calls SSL_shutdown () twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q). (CVE-2019-1559) Impact This vulnerability may allow an attacker to disrupt service. Security Advisory Status F5 Product Development has assigned IDs 761725 and 765053 (BIG-IP and Enterprise Manager), and CPF-25069 and CPF-25070 (Traffix) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. 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. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +----------------+------+----------+----------+----------+------+-------------+ | | |Versions |Fixes | |CVSSv3|Vulnerable | |Product |Branch|known to |introduced|Severity |score^|component or | | | |be |in | |1 |feature | | | |vulnerable| | | | | +----------------+------+----------+----------+----------+------+-------------+ | |14.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |13.x |None |Not | | | | | | | |applicable|Not | | | | +------+----------+----------+vulnerable|None |None | | |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+----------+------+-------------+ | |14.x |14.1.0 |None | | | | |BIG-IP (LTM, +------+----------+----------+ | |iRulesLX is | |AAM, AFM, |13.x |None |Not | | |exposed to | |Analytics, APM, | | |applicable| | |this | |ASM, DNS, Edge +------+----------+----------+Medium |6.8 |vulnerability| |Gateway, FPS, |12.x |None |Not | | |because | |GTM, Link | | |applicable| | |NodeJS uses | |Controller, PEM,+------+----------+----------+ | |the OpenSSL | |WebAccelerator) |11.x |None |Not | | |library | | | | |applicable| | | | | +------+----------+----------+----------+------+-------------+ | |14.x |14.0.0 - |None | | | | | | |14.1.0 | | | |iAppsLX is | | +------+----------+----------+ | |exposed to | | |13.x |13.0.0 - |None | | |this | | | |13.1.1 | | | |vulnerability| | +------+----------+----------+Medium |6.8 |because | | |12.x |12.1.0 - |None | | |NodeJS uses | | | |12.1.4 | | | |the OpenSSL | | +------+----------+----------+ | |library | | |11.x |None |Not | | | | | | | |applicable| | | | +----------------+------+----------+----------+----------+------+-------------+ |Enterprise |3.x |None |Not |Not |None |None | |Manager | | |applicable|vulnerable| | | +----------------+------+----------+----------+----------+------+-------------+ | |6.x |6.0.0 - |None |Medium |6.8 |NodeJS | |BIG-IQ | |6.1.0 | | | | | |Centralized +------+----------+----------+----------+------+-------------+ |Management |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +----------------+------+----------+----------+----------+------+-------------+ |F5 iWorkflow |2.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +----------------+------+----------+----------+----------+------+-------------+ | |5.x |5.0.0 - |None | | | | |Traffix SDC | |5.1.0 | |Medium |6.8 |OpenSSL | | +------+----------+----------+ | | | | |4.x |4.4.0 |None | | | | +----------------+------+----------+----------+----------+------+-------------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation None Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K15113: BIG-IQ hotfix and point release matrix o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM systems (11.4.x and later) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents o K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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: https://www.auscert.org.au/bulletins/ =========================================================================== 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). 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