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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0360 Nettle vulnerability 7 February 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libnettle6 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-6489 Reference: ESB-2016.2600 Original Bulletin: http://www.ubuntu.com/usn/usn-3193-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3193-1 February 06, 2017 nettle vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.10 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS - - Ubuntu 12.04 LTS Summary: Nettle could be made to expose sensitive information over the network. Software Description: - - nettle: low level cryptographic library (public-key cryptos) Details: It was discovered that Nettle incorrectly mitigated certain timing side-channel attacks. A remote attacker could possibly use this flaw to recover private keys. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: libnettle6 3.2-1ubuntu0.16.10.1 Ubuntu 16.04 LTS: libnettle6 3.2-1ubuntu0.16.04.1 Ubuntu 14.04 LTS: libnettle4 2.7.1-1ubuntu0.2 Ubuntu 12.04 LTS: libnettle4 2.4-1ubuntu0.1 In general, a standard system update will make all the necessary changes.= References: http://www.ubuntu.com/usn/usn-3193-1 CVE-2016-6489 Package Information: https://launchpad.net/ubuntu/+source/nettle/3.2-1ubuntu0.16.10.1 https://launchpad.net/ubuntu/+source/nettle/3.2-1ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/nettle/2.7.1-1ubuntu0.2 https://launchpad.net/ubuntu/+source/nettle/2.4-1ubuntu0.1 - --------------------------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 iQIVAwUBWJlMM4x+lLeg9Ub1AQhbxA//eAj/JUtOxzRGzpl4on3cQ8S5h4HrySp7 Fn3rXnCGomZSucNqD0lPejblx4ML4VHQwLhtkV3LpD1hWjbijBgqd2B26Qj3cQt1 V+HlS1LqZbNYF2y7Btmm80iSiDIdnqq+TACvFz8tOeqTMmJqVXIalGWBlYPq9d3x XU7vTT2sQ0Ts1HoPA25Rul1KYo7kCG+GOWIANOLhMj/unaxm67UlJm8vFiUF9thv A2U31Yju5/HAbpzPkUgOI5f52jpkwNzc2ZksUoJr+8GEAg+OFRYnxPmiDzzAJMHG 4D7vzVmkva6EQhr2nSRH7trpMgx5/WsRCkjh6QpePpvtPuKBdNmZJLvCxmt9MngH mqna5zfvm8gtulEzoSk9G9B5gz7P3QTN6V2DS3d+siZiZG0ZbiofakE56ObGymPq /IVKxjWwZc+ap7pqxRfUzW86jj/m+xbroPsv6cK4hXWdGcsByxpzX4rsg/jmcLZe LtJ0bRjpAsZ88NurrRcFD1x99ypVQqzdvckyfZ2qCxjFW+EXJ4b9xWyaQFlgBawx CNpQ/2ZtquNomHsrovnpKrwwj8ISE1onktE0yUPNqZVDNjaeZUSYyJ20CuOeLyC5 i18fZEPOE8GygsaZuyDSa+aAQ3G9oIYEFw6mXQ6ggGObwXi2iq44qV5+WBPRKwAM gu0CCI5KZlI= =Vsn0 -----END PGP SIGNATURE-----