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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0792.2 Samba vulnerability 31 March 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: samba Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-2619 Reference: ESB-2017.0790 Original Bulletin: http://www.ubuntu.com/usn/usn-3242-2 Revision History: March 31 2017: USN-3242-1 introduced a regression in Samba March 24 2017: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3242-2 March 30, 2017 samba regression ========================================================================== 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: USN-3242-1 introduced a regression in Samba. Software Description: - - samba: SMB/CIFS file, print, and login server for Unix Details: USN-3242-1 fixed a vulnerability in Samba. The upstream fix introduced a regression when Samba is configured to disable following symbolic links. This update fixes the problem. Original advisory details: Jann Horn discovered that Samba incorrectly handled symlinks. An authenticated remote attacker could use this issue to access files on the server outside of the exported directories. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: samba 2:4.4.5+dfsg-2ubuntu5.5 Ubuntu 16.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.16.04.6 Ubuntu 14.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.14.04.7 Ubuntu 12.04 LTS: samba 2:3.6.25-0ubuntu0.12.04.10 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-3242-2 http://www.ubuntu.com/usn/usn-3242-1 https://launchpad.net/bugs/1675698 Package Information: https://launchpad.net/ubuntu/+source/samba/2:4.4.5+dfsg-2ubuntu5.5 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.6 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.14.04.7 https://launchpad.net/ubuntu/+source/samba/2:3.6.25-0ubuntu0.12.04.10 - --------------------------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 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 iQIVAwUBWN2VIox+lLeg9Ub1AQgPZA//UAv5O8rdhxV1Bg56cy62lsUevR77Bvvp MPm8yDJCV4XPY5EyxuA67uVDPbHDFdj3Vbj6yl2T/KpaXUFDGeLsIinJFEkO0sBy O5qxsQpH5423C6LIFtxLP7Nwbk9OhKoqHfZegFhkW2TkwRUxJygjfgh6sieKDk53 HTA5yXFN6FVkkDmkm9DtmiGKy7ODPpaSZG1nhfHla0y/IJtotNGn6vUiJgukctSc b91oxL30TsFJW61NG4Cg3oJaKGq2tRVH45ax22DsiS16eTfrO0R2LoBQrcGVTOXy 1zeWP5A1+SU4ER/ZzPIZeDOOSZNqzwrKBJDaD85qSxLqoqUaWfSXiivro7t6N9yf rPUzZVi6MbhilPsVV0+DJFvQjslME79JAdlqaHCO1L3bBU+9CLkeip8lPcoIB3+e AF7X8Tv7oUicHuOjuD9zidjdgJF3nmOgY44Q3mCPsArH/bG+QxM2PKqQPhAcEpTA 3yBBBOhrc7Rpa0+9QFeucgUKKGN3lJqGnxitRiPi/I3NFQFQoeBmkmZRuEd4K16t brBIf8y/IEW/ngxCVZpsWhc/pttwCH290jwf372EEQTr6qWbbDqNXcVyDkgOxqig LG76wXMMLc82om8sSyoODS8nKNfFhDTZzzBMGgghDQvG/14cWlQtVcJ9YAHcd3ZS 5/1VuYYUnp4= =YgMD -----END PGP SIGNATURE-----