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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1670 K42891424: Grep vulnerability CVE-2015-1345 3 July 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Grep Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-1345 Reference: ESB-2016.0128 ESB-2015.2870 ESB-2015.1924 Original Bulletin: https://support.f5.com/csp/article/K42891424 - --------------------------BEGIN INCLUDED TEXT-------------------- K42891424: Grep vulnerability CVE-2015-1345 Security Advisory Original Publication Date: Jun 29, 2017 Applies to (see versions): The vulnerability described in this article has been resolved, or does not affect any F5 products. There will be no further updates, unless new information is discovered. Security Advisory Description The bmexec_trans function in kwset.c in grep 2.19 through 2.21 allows local users to cause a denial of service (out-of-bounds heap read and crash) via crafted input when using the -F option. (CVE-2015-1345) Impact A local user may cause a denial-of-service (DoS) by way of crafted input when using the -F option. Security Advisory Status F5 Product Development has assigned ID 537582 (BIG-IP) and ID LRS-61265 (LineRate) 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 be vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature BIG-IP LTM 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 11.2.1 BIG-IP AAM 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 BIG-IP AFM 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 BIG-IP Analytics 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 11.2.1 BIG-IP APM 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 11.2.1 BIG-IP ASM 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 11.2.1 BIG-IP DNS 12.0.0 13.0.0 12.1.0 - 12.1.2 Low grep utility BIG-IP Edge Gateway None 11.2.1 Not vulnerable None BIG-IP GTM None 11.4.0 - 11.6.1 11.2.1 Not vulnerable None BIG-IP Link Controller 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 11.2.1 BIG-IP PEM 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.4.0 - 11.6.1 BIG-IP PSM None 11.4.0 - 11.4.1 Not vulnerable None BIG-IP WebAccelerator None 11.2.1 Not vulnerable None BIG-IP WebSafe 12.0.0 13.0.0 Low grep utility 12.1.0 - 12.1.2 11.6.0 - 11.6.1 ARX None 6.2.0 - 6.4.0 Not vulnerable None Enterprise Manager None 3.1.1 Not vulnerable None BIG-IQ Cloud None 4.4.0 - 4.5.0 Not vulnerable None BIG-IQ Device None 4.4.0 - 4.5.0 Not vulnerable None BIG-IQ Security None 4.4.0 - 4.5.0 Not vulnerable None BIG-IQ ADC None 4.5.0 Not vulnerable None BIG-IQ Centralized Management None 5.0.0 - 5.2.0 Not vulnerable None 4.6.0 BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable None F5 iWorkflow None 2.0.0 - 2.2.0 Not vulnerable None LineRate 2.5.0 - 2.6.2 None Low grep utility Traffix SDC None 5.0.0 - 5.1.0 Not vulnerable None 4.0.0 - 4.4.0 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 Versions known to be not vulnerable 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 for BIG-IP systems, you should ensure that any regex used with the grep utility is not subject to control by an attacker. 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. For more information, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x) and K13092: Overview of securing access to the BIG-IP system. Impact of action: Performing the suggested mitigation should not have a negative impact on your system. To mitigate this vulnerability for LineRate systems, you should avoid running LineRate on a hypervisor-based system, as this is the only way to exploit this vulnerability on a LineRate system. Impact of action: Performing the suggested mitigation should not have a negative impact on your system. Supplemental Information K9970: Subscribing to email notifications regarding F5 products K9957: Creating a custom RSS feed to view new and updated documents K4602: Overview of the F5 security vulnerability response policy K4918: Overview of the F5 critical issue hotfix policy K167: Downloading software and firmware from F5 - --------------------------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 iQIVAwUBWVnKe4x+lLeg9Ub1AQhlbg//eq+xPydIZ6OV/cZ8g5s1B1IVZKoxIEAE HgbuUSBd5RMCyZMbI1rAf5yhxg0ozaiLR1/q5tOPpWm84I4ulSvXZJTHYMVnqnE/ SzM4rvgTQvJRsdabf6WkYyU66T+H7B0mqKGXR5JF4rrRes1QU4KulCFSRzWdSSJN 3TxhKzL7MOAqaehv/AqqTA3ldE2vBbs4mkN446IiIqqf7Z20K25fobZ5UXkf1cBC 2g6CgRpMmqfrUNURdxaOTy7VN+mPboPTNW+tzQDatzR28vAvUU22e3PT/gcSzU5l qbxH+HwCF6naxXVEvwXf8thEuyrN0zkJDZdCsJ8wpG4Ehsl09Je4vZG5VKtmVJmV jaoGvFOmrFj7EuScUk/t6f1jb3AooMqyeVLIlvOMM7UtXhPiF6eoeL96fKb74fEu 5O9wUlgNa26tOTk9XEgzc0K/ILyGX/WtdGTZWipmByt8hB4hjD59RlbN8bgVu/CU 7J5pTuggDiBtEQ51gIoE6O4mmtvkquSZdPMxrstaFRV6TbXxro/whNjFYjvYdnh5 ymomdC9YFNf7BYGMItsfVmCqb9DygQ14oyCYZhwP4hqzX6WwB0sJnPJDjU+jK8to tTAl2iC5VYIwq6+WWn0HNSdTcXSsYme9d7A/zjDKCi2rNO7jDUmZWGVhNp+yoRbo RFYEdRbZPGY= =c1FF -----END PGP SIGNATURE-----