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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1825 Linux kernel vulnerability CVE-2019-19062 22 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 Traffix SDC Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-19062 Reference: ESB-2020.0851 ESB-2019.4584 ESB-2019.4346.2 Original Bulletin: https://support.f5.com/csp/article/K84797753 - --------------------------BEGIN INCLUDED TEXT-------------------- K84797753: Linux kernel vulnerability CVE-2019-19062 Security Advisory Original Publication Date: 22 May, 2020 Security Advisory Description A memory leak in the crypto_report() function in crypto/crypto_user_base.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering crypto_report_alg() failures, aka CID-ffdde5932042. (CVE-2019-19062) Impact A local attacker with access to induce the error conditions can use this flaw to stop the Traffix system. The greatest threat from this vulnerability is to system availability. Security Advisory Status F5 Product Development has assigned ID CPF-25195 (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 yo= ur release is known to be vulnerable, the components or features that are affect= ed by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following table. For mo= re information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +-------------------+------+----------+----------+----------+------+---------= - -+ | | |Versions |Fixes | |CVSSv3|Vulnerabl= e| |Product |Branch|known to |introduced|Severity |score^|component= | | | |be |in | |1 |or featur= e| | | |vulnerable| | | | = | +-------------------+------+----------+----------+----------+------+---------= - -+ | |15.x |None |Not | | | = | | | | |applicable| | | = | | +------+----------+----------+ | | = | | |14.x |None |Not | | | = | |BIG-IP (LTM, AAM, | | |applicable| | | = | |AFM, Analytics, +------+----------+----------+ | | = | |APM, ASM, DNS, FPS,|13.x |None |Not |Not |None |None = | |GTM, Link | | |applicable|vulnerable| | = | |Controller, PEM) +------+----------+----------+ | | = | | |12.x |None |Not | | | = | | | | |applicable| | | = | | +------+----------+----------+ | | = | | |11.x |None |Not | | | = | | | | |applicable| | | = | +-------------------+------+----------+----------+----------+------+---------= - -+ | |7.x |None |Not | | | = | | | | |applicable| | | = | | +------+----------+----------+ | | = | |BIG-IQ Centralized |6.x |None |Not |Not |None |None = | |Management | | |applicable|vulnerable| | = | | +------+----------+----------+ | | = | | |5.x |None |Not | | | = | | | | |applicable| | | = | +-------------------+------+----------+----------+----------+------+---------= - -+ |Traffix SDC |5.x |5.1.0 |None |Medium |7.5 |Bash = | +-------------------+------+----------+----------+----------+------+---------= - -+ ^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 versio= n, 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 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 - --------------------------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: 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXsdNiuNLKJtyKPYoAQhHthAAsdgHjxMuNqiAFJOrPWmZlFG0qoUNf8Qb llsQ9ce14pLt/hsyeT+VPYEWdmlC35WWu4XL1PcnsAlKrNI2Dg5SDcOlLK9jwfoG mvMfEJ/orddkJ9zQ0Z0YLi89PXeOcEbpfUdqbWVtZgc+6VqE4lwCSqdLLkQpQMpe SVEtn1rFDX/PyFsKwMukC9jrMwP/3GiN0L2oUmIjkK7VfrI9pUTBAc8qUtAuJ6F9 l0p6a/4PJs44nwV5ySDe6/47bOrKjH7ooN9rWSg6oT+LkN3i7D82rQENlWfGxuZO BcFsuMK5Oe/UI4Wt1g2a/vFDo+OqwHBxoQzotFgCAYwYikxt2lZsBoDBUR72JBC3 h6UwVnZypifcO82H/T7V2orNrKIDCiWOul0cR5e0rBhNsuTS5oaQ4H5i1cHiUzOy mQAbV02xnerE7+BfcmkuoyM0E4tGvCA0kOfgIT5om4+PaQMRP1ST2RbZfs5wk/k9 3jMTKr+0wuzNaTTfdsdjPPjULhfe9Z51Hn8UD/6CoyYGSzTNHZJNAtg2e8rtW1D0 P4Ij39C3KeUeq0nnCY8h6K52YFFT/xVUvObjk4j/ymRggxUII1T16MLM0JjsPhyp lvyZbKri4UhWSQ24DwVhS3yQG/fbZ9sfQPWwalSmGIgvoHqkLOw76qvObIdGbePM 8L12ix9T/WY= =vcdB -----END PGP SIGNATURE-----