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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1920.8 Linux kernel multiple vulnerabilities 16 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products F5 Enterprise Manager F5 BIG-IQ products F5 iWorkflow F5 Traffix SDC Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Access Privileged Data -- Existing Account Denial of Service -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-9077 CVE-2017-9076 CVE-2017-9075 CVE-2017-8890 CVE-2017-7889 Reference: ESB-2018.1797 ESB-2017.1548 ESB-2017.1526.2 Original Bulletin: https://support.f5.com/csp/article/K02236463 https://support.f5.com/csp/article/K02613439 https://support.f5.com/csp/article/K61429540 https://support.f5.com/csp/article/K80440915 Revision History: April 16 2019: Vendor updated advisories K02236463, K02613439, K80440915 March 26 2019: Added latest advisory update March 13 2019: Updates to K02236463 and K02613439 December 18 2018: Updates to add 14.1.0 fixes October 24 2018: Security Advisory Status for K61429540 updated with heuristic information for BIG-IP Health October 19 2018: Patch available for BIP-IP and added (CVE-2017-7889) July 10 2018: Added Heuristics H02236463 and H02613439. July 3 2018: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K02236463:Linux kernel vulnerability CVE-2017-9075 Security Advisory Original Publication Date: 03 Jul, 2018 Latest Publication Date: 16 Apr, 2019 Security Advisory Description The sctp_v6_create_accept_sk function in net/sctp/ipv6.c in the Linux kernel through 4.11.1 mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. (CVE-2017-9075) Impact This vulnerability allows malicious users to cause a denial of service (DoS) on the F5 product. Security Advisory Status F5 Product Development has assigned ID 726409 (BIG-IP), ID 726441 (BIG-IQ/ iWorkflow), ID 726433 (Enterprise Manager), and CPF-24925 and CPF-24926 (Traffix) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H02236463 on the Diagnostics > Identified > Medium page. 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 | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |14.x |14.0.0 |14.1.0 | | | | | | | |14.0.0.3 | | | | | +------+----------+----------+ | | | |BIG-IP (LTM, AAM, |13.x |13.0.0 - |13.1.1.2 | | | | |AFM, Analytics, | |13.1.1 | | | | | |APM, ASM, DNS, Edge+------+----------+----------+ | |Linux | |Gateway, FPS, GTM, |12.x |12.1.0 - |12.1.4.1 |Medium |6.5 |kernel | |Link Controller, | |12.1.4 | | | | | |PEM, +------+----------+----------+ | | | |WebAccelerator) | |11.6.0 - | | | | | | |11.x |11.6.3 |11.6.4 | | | | | | |11.2.1 - |11.5.9 | | | | | | |11.5.8 | | | | | +-------------------+------+----------+----------+----------+------+----------+ |ARX |6.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |3.1.1 |None |Medium |6.5 |Linux | | | | | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ | |6.x |6.0.0 - |None | | | | | | |6.1.0 | | | | | |BIG-IQ Centralized +------+----------+----------+ | |Linux | |Management |5.x |5.0.0 - |None |Medium |6.5 |kernel | | | |5.4.0 | | | | | | +------+----------+----------+ | | | | |4.x |4.6.0 |None | | | | +-------------------+------+----------+----------+----------+------+----------+ |BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |6.5 |Linux | |Orchestration | | | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |2.1.0 - |None |Medium |6.5 |Linux | | | |2.3.0 | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ | |5.x |5.0.0 - |None | | | | |Traffix SDC | |5.1.0 | |Medium |6.5 |Linux | | +------+----------+----------+ | |kernel | | |4.x |4.4.0 |None | | | | +-------------------+------+----------+----------+----------+------+----------+ ^1 The 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 To mitigate this vulnerability, you should permit management access to F5 products only over a secure network and restrict access for affected systems to only trusted users. For more information about implementing this on a BIG-IP system, refer to K13092: Overview of securing access to the BIG-IP system. Supplemental Information o K54170502: Linux kernel vulnerability CVE-2017-8890 o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - -------------------------------------------------------------------------------- K02613439:Linux kernel vulnerability CVE-2017-9076 Security Advisory Original Publication Date: 03 Jul, 2018 Latest Publication Date: 16 Apr, 2019 Security Advisory Description The dccp_v6_request_recv_sock function in net/dccp/ipv6.c in the Linux kernel through 4.11.1 mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. (CVE-2017-9076) Impact This vulnerability allows an unprivileged local user to cause a denial of service (DoS) or disruption of service through crafted system calls. Security Advisory Status F5 Product Development has assigned ID 726409 (BIG-IP), ID 726441 (BIG-IQ and F5 iWorkflow), and ID 726433 (Enterprise Manager) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H02613439 on the Diagnostics > Identified > Medium page. 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 | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +------------------+------+----------+----------+-----------+------+----------+ | |14.x |14.0.0 |14.1.0 | | | | | | | |14.0.0.3 | | | | | +------+----------+----------+ | | | |BIG-IP (LTM, AAM, |13.x |13.0.0 - |13.1.1.2 | | | | |AFM, Analytics, | |13.1.1 | | | | | |APM, ASM, DNS, +------+----------+----------+ | |Linux | |Edge Gateway, FPS,|12.x |12.1.0 - |12.1.4.1 |Medium |6.5 |kernel | |GTM, Link | |12.1.4 | | | | | |Controller, PEM, +------+----------+----------+ | | | |WebAccelerator) | |11.6.1 - | | | | | | |11.x |11.6.3 |11.6.4 | | | | | | |11.2.1 - |11.5.9 | | | | | | |11.5.8 | | | | | +------------------+------+----------+----------+-----------+------+----------+ | | | |Not |Not | | | |ARX |6.x |None |applicable|vulnerable^|None |None | | | | | |2 | | | +------------------+------+----------+----------+-----------+------+----------+ |Enterprise Manager|3.x |3.1.1 |None |Medium |6.5 |Linux | | | | | | | |kernel | +------------------+------+----------+----------+-----------+------+----------+ | |6.x |6.0.0 - |None | | | | | | |6.1.0 | | | | | |BIG-IQ Centralized+------+----------+----------+ | |Linux | |Management |5.x |5.0.0 - |None |Medium |6.5 |kernel | | | |5.4.0 | | | | | | +------+----------+----------+ | | | | |4.x |4.6.0 |None | | | | +------------------+------+----------+----------+-----------+------+----------+ |BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |6.5 |Linux | |Orchestration | | | | | |kernel | +------------------+------+----------+----------+-----------+------+----------+ |F5 iWorkflow |2.x |2.1.0 - |None |Medium |6.5 |Linux | | | |2.3.0 | | | |kernel | +------------------+------+----------+----------+-----------+------+----------+ | |5.x |None |Not | | | | | | | |applicable|Not | | | |Traffix SDC +------+----------+----------+vulnerable |None |None | | |4.x |None |Not | | | | | | | |applicable| | | | +------------------+------+----------+----------+-----------+------+----------+ ^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. ^2The specified products contain the affected code. However, F5 identifies the vulnerability status as Not vulnerable because the attacker cannot exploit the code in default, standard, or recommended configuration. 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 To mitigate this vulnerability, you should permit management access to F5 products only over a secure network and restrict command line/Configuration utility access for affected systems to only Administrative users. For more information, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 14.x) and K13092: Overview of securing access to the BIG-IP system. Supplemental Information o K54170502: Linux kernel vulnerability CVE-2017-8890 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 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 - -------------------------------------------------------------------------------- K61429540:Linux kernel vulnerability CVE-2017-9077 Security Advisory Original Publication Date: 03 Jul, 2018 Latest Publication Date: 16 Apr, 2019 Security Advisory Description The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.11.1 mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. (CVE-2017-9077) Impact This vulnerability allows a disruption of service and possibly an unauthorized disclosure of information. Security Advisory Status F5 Product Development has assigned ID 726409 (BIG-IP), ID 726441 (BIG-IQ), ID 726433 (Enterprise Manager), and IDs CPF-24925 and CPF-24926 (Traffix SDC) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H61429540 on the Diagnostics > Identified > Medium page. 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 | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |14.x |14.0.0 |14.1.0 | | | | | | | |14.0.0.3 | | | | |BIG-IP (LTM, AAM, +------+----------+----------+ | | | |AFM, Analytics, |13.x |13.0.0 - |13.1.1.2 | | | | |APM, ASM, DNS, Edge| |13.1.1 | | | |Linux | |Gateway, FPS, GTM, +------+----------+----------+Medium |6.5 |kernel | |Link Controller, |12.x |12.1.0 - |12.1.4.1 | | | | |PEM, | |12.1.4 | | | | | |WebAccelerator) +------+----------+----------+ | | | | |11.x |11.2.1 - |11.6.4 | | | | | | |11.6.3 |11.5.9 | | | | +-------------------+------+----------+----------+----------+------+----------+ |ARX |6.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |3.1.1 |None |Medium |6.5 |Linux | | | | | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ | |6.x |6.0.0 - |None | | | | | | |6.1.0 | | | | | |BIG-IQ Centralized +------+----------+----------+ | |Linux | |Management |5.x |5.0.0 - |None |Medium |6.5 |kernel | | | |5.4.0 | | | | | | +------+----------+----------+ | | | | |4.x |4.6.0 |None | | | | +-------------------+------+----------+----------+----------+------+----------+ |BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |6.5 |Linux | |Orchestration | | | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |2.1.0 - |None |Medium |6.5 |Linux | | | |2.3.0 | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ | |5.x |5.0.0 - |Not | | | | | | |5.1.0 |applicable| | | | |Traffix SDC +------+----------+----------+Medium |6.5 |None | | |4.x |4.4.0 |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ ^1 The 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 To mitigate this vulnerability, you should permit management access to F5 products only over a secure network and restrict command line access for affected systems to trusted users. For more information, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 14.x) and K13092: Overview of securing access to the BIG-IP system. 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 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 - -------------------------------------------------------------------------------- K80440915:Linux kernel vulnerability CVE-2017-7889 Security Advisory Original Publication Date: 29 Jun, 2018 Latest Publication Date: 18 Dec, 2018 Security Advisory Description The mm subsystem in the Linux kernel through 4.10.10 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c. (CVE-2017-7889) Impact Exploitation of this issue requires local administrative-level shell access. A successful exploit of this vulnerability allows unauthorized disclosure of information, unauthorized modification of data, and disruption of service. F5 recommends that you permit management access to F5 products only over a secure network and restrict command line access for affected systems to only trusted users. Security Advisory Status F5 Product Development has assigned ID 725801 (BIG-IP), ID 725898 (BIG-IQ and F5 iWorkflow), ID 725897 (Enterprise Manager), and IDs CPF-24919 and CPF-24920 (Traffix SDC) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H80440915 on the Diagnostics > Identified > Medium page. 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 | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +------------------+------+----------+----------+-----------+------+----------+ | |14.x |14.0.0 |14.1.0 | | | | | | | |14.0.0.3 | | | | |BIG-IP (LTM, AAM, +------+----------+----------+ | | | |AFM, Analytics, |13.x |13.0.0 - |13.1.1.2 | | | | |APM, ASM, DNS, | |13.1.1 | | | |Linux | |Edge Gateway, FPS,+------+----------+----------+Medium |6.7 |kernel | |GTM, Link |12.x |12.1.0 - |None | | | | |Controller, PEM, | |12.1.3 | | | | | |WebAccelerator) +------+----------+----------+ | | | | |11.x |11.2.1 - |None | | | | | | |11.6.3 | | | | | +------------------+------+----------+----------+-----------+------+----------+ | | | |Not |Not | | | |ARX |6.x |None |applicable|vulnerable^|None |None | | | | | |2 | | | +------------------+------+----------+----------+-----------+------+----------+ |Enterprise Manager|3.x |3.1.1 |None |Medium |6.7 |Linux | | | | | | | |kernel | +------------------+------+----------+----------+-----------+------+----------+ | |6.x |6.0.0 |None | | | | | +------+----------+----------+ | | | |BIG-IQ Centralized|5.x |5.0.0 - |None |Medium |6.7 |Linux | |Management | |5.4.0 | | | |kernel | | +------+----------+----------+ | | | | |4.x |4.6.0 |None | | | | +------------------+------+----------+----------+-----------+------+----------+ |BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |6.7 |Linux | |Orchestration | | | | | |kernel | +------------------+------+----------+----------+-----------+------+----------+ |F5 iWorkflow |2.x |2.1.0 - |None |Medium |6.7 |Linux | | | |2.3.0 | | | |kernel | +------------------+------+----------+----------+-----------+------+----------+ |LineRate |2.x |None |Not |Not |None |None | | | | |applicable|vulnerable | | | +------------------+------+----------+----------+-----------+------+----------+ | |5.x |5.0.0 - |None | | | | |Traffix SDC | |5.1.0 | |Medium |6.7 |Linux | | +------+----------+----------+ | |kernel | | |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. ^2The specified products contain the affected code. However, F5 identifies the vulnerability status as Not vulnerable because the attacker cannot exploit the code in default, standard, or recommended configurations. 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 To mitigate this vulnerability, you should permit management access to F5 products only over a secure network and restrict command line access for affected systems to only trusted users. For more information, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 14.x) and K13092: Overview of securing access to the BIG-IP system. Supplemental Information 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 K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - --------------------------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. 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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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