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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2957 strongSwan vulnerability 2 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: strongswan Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-17540 Original Bulletin: http://www.ubuntu.com/usn/usn-3774-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3774-1: strongSwan vulnerability 1 October 2018 strongswan vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary strongSwan could be made to crash or run programs if it received specially crafted network traffic. Software Description strongswan - IPsec VPN solution Details It was discovered that strongSwan incorrectly handled signature validation in the gmp plugin. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS libstrongswan - 5.6.2-1ubuntu2.3 strongswan - 5.6.2-1ubuntu2.3 Ubuntu 16.04 LTS libstrongswan - 5.3.5-1ubuntu3.8 strongswan - 5.3.5-1ubuntu3.8 Ubuntu 14.04 LTS libstrongswan - 5.1.2-0ubuntu2.11 strongswan - 5.1.2-0ubuntu2.11 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2018-17540 - --------------------------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 iQIVAwUBW7K572aOgq3Tt24GAQjGQxAAqhgKIDgO/gw3bD0zGgycnUaEH0xYHRjE +82oxIu9U7nBy/q7QOusbL9Dlw1bgqJF1EoMomdLuK7O5RcJGnrynJW/1RxCnxgJ T0vMXLzgPbQm3BP5zCC7mSkI3zKy0ohYitn7iIg71DZGhIL/uuoyAk4Jh1TdWEOU vUR8tLRGRFs/HsSVzUQ24hP5y+yIXDqKx/hpVqojleekDNNqQHrE0IaR2CFklU31 BzO08sz4Uu/llnBV2oB523suxzewop4nYh0fdObEFklKgmsqLRfntrPoBMl5qCV0 xJTqGVCXJw3bFuBrrmHAVtoVc7jddvbX6e1uhN8o22kNMGspszvNqQ92u2Gardg2 ZEfaPFjAxvIEWAZkA8pw8jL+kNsr5bNNBSlcnotdUsaiyH3HGDCOvH9+u3X/reIR 0LIaP7qJC7mkoj054MUASCcisXY42jRaOo5gWQQJGa3l2vA+CyJ2rkkX5Asy/UAH CSekPgi1ar7eBEQe0FPDYMPTmorbi5LM2XDWu29R7B51kmvvdE6crJQhMfOTQkLi ltyjobDJGM4fxE7j39uXO7r6TvCg94DyYyxc8iRF3cKiJ5VczqE0Q/AG7rKLHHvN EGwKTgSvJgMBRtUO/Bcbl2js8cYPy0IehvheljV0lnk6nbCP4/+qpUmvbXlkmVMr v4AGOaAPKYk= =cO/r -----END PGP SIGNATURE-----