17 July 2017
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1758 Samba vulnerability 17 July 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: samba-libs Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-11103 Reference: ESB-2017.1741 ESB-2017.1756 Original Bulletin: http://www.ubuntu.com/usn/usn-3353-2 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3353-2 July 14, 2017 samba vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.04 - - Ubuntu 16.10 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Samba could allow unintended access to network services. Software Description: - - samba: SMB/CIFS file, print, and login server for Unix Details: USN-3353-1 fixed a vulnerability in Heimdal. This update provides the corresponding update for Samba. Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered that Samba clients incorrectly trusted unauthenticated portions of Kerberos tickets. A remote attacker could use this to impersonate trusted network servers or perform other attacks. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: samba-libs 2:4.5.8+dfsg-0ubuntu0.17.04.4 Ubuntu 16.10: samba-libs 2:4.4.5+dfsg-2ubuntu5.8 Ubuntu 16.04 LTS: samba-libs 2:4.3.11+dfsg-0ubuntu0.16.04.9 Ubuntu 14.04 LTS: samba-libs 2:4.3.11+dfsg-0ubuntu0.14.04.10 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3353-2 https://www.ubuntu.com/usn/usn-3353-1 CVE-2017-11103 Package Information: https://launchpad.net/ubuntu/+source/samba/2:4.5.8+dfsg-0ubuntu0.17.04.4 https://launchpad.net/ubuntu/+source/samba/2:4.4.5+dfsg-2ubuntu5.8 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.9 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.14.04.10 - --------------------------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 firstname.lastname@example.org and we will forward your request to the appropriate person. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWWwCqox+lLeg9Ub1AQilZRAAk0AQG57mXkC+LcOv0vZ+nCW8z22TTg0+ G2odgfVlzVwrvR4jf6CBAz/m5xb58x0xX9sZQdcxtHoc//m8S5wKzX+BKTc1W9Gd Ultb3QGTJf52Pza81UAqkTf/5u4fslOh0GBJE1SD51WcBpSqCB+NTUCSRknCfBWf TwAEYpda9t5kaMPyS/eUK7d+RAr4+fFsvJLcLtuARO7PrMYh7KZsMDGc5HFkSP+R dRNRfkgdXAYuUo5SV+TsDC+D9wmBUwcd0OkJrj9fab0hzoJphq+gYMI9K2t4110r ro39FtvC/5eAJboTlESA0zx5oHY4dIQd7OoFG+Z5lxtrqRXwSJ7VzjoVeBgb0RUp rLXJ4uyBZhxsv1FC+P7amde+fzbXVh48PPAWktZzAfH/rQigV9Dgix0+wU/pT2gt 5PgzMAhSo/tkmRnzSnPvST0pEEbUcM5FmQr8DtIlKfbqGwqeAhvcW8748D2pfXZz TGNq5Wxdaj00ybLfeSRxL2LjrFfGMYJ0sihO/43yUgxpe/KazC1rHuZ95Tncng9z h2NUMaYB48ypG8Jq8YLXtxgGi1P7NNcYqz1OCR+uh339jE2CpFkC1TYJavfQIwzb pILTWb0ht831We0Us67jPZsSnzXwOcCFEIxRWRcd9jh8C7Z+QhKSa6ffxfFGduA3 qp6yiREtwXQ= =zeSD -----END PGP SIGNATURE-----