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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2398.2 Samba vulnerabilities 3 November 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: samba Publisher: Ubuntu Operating System: Ubuntu UNIX variants (UNIX, Linux, OSX) Impact/Access: Access Privileged Data -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-12163 CVE-2017-12151 CVE-2017-12150 Original Bulletin: http://www.ubuntu.com/usn/usn-3426-1 Comment: This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running samba check for an updated version of the software for their operating system. Revision History: November 3 2017: Addition of patch for Ubuntu 12.04 ESM September 22 2017: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3426-1 September 21, 2017 samba vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.04 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Samba could be made to expose sensitive information over the network. Software Description: - - samba: SMB/CIFS file, print, and login server for Unix Details: Stefan Metzmacher discovered that Samba incorrectly enforced SMB signing in certain situations. A remote attacker could use this issue to perform a man in the middle attack. (CVE-2017-12150) Stefan Metzmacher discovered that Samba incorrectly handled encryption across DFS redirects. A remote attacker could use this issue to perform a man in the middle attack. (CVE-2017-12151) Yihan Lian and Zhibin Hu discovered that Samba incorrectly handled memory when SMB1 is being used. A remote attacker could possibly use this issue to obtain server memory contents. (CVE-2017-12163) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: samba 2:4.5.8+dfsg-0ubuntu0.17.04.7 Ubuntu 16.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.16.04.11 Ubuntu 14.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.14.04.12 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3426-1 CVE-2017-12150, CVE-2017-12151, CVE-2017-12163 Package Information: https://launchpad.net/ubuntu/+source/samba/2:4.5.8+dfsg-0ubuntu0.17.04.7 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.11 https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.14.04.12 ========================================================================== Ubuntu Security Notice USN-3426-2 November 02, 2017 samba vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 12.04 ESM Summary: Several security issues were fixed in XXX-APP-XXX. Software Description: - - samba: SMB/CIFS file, print, and login server for Unix Details: USN-3426-1 fixed several vulnerabilities in Samba. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details:  Stefan Metzmacher discovered that Samba incorrectly enforced SMB  signing in certain situations. A remote attacker could use this issue  to perform a man in the middle attack. (CVE-2017-12150)  Yihan Lian and Zhibin Hu discovered that Samba incorrectly handled  memory when SMB1 is being used. A remote attacker could possibly use  this issue to obtain server memory contents. (CVE-2017-12163) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM:  samba 2:3.6.25-0ubuntu0.12.04.13 In general, a standard system update will make all the necessary changes. References:  https://www.ubuntu.com/usn/usn-3426-2  https://www.ubuntu.com/usn/usn-3426-1  CVE-2017-12150, CVE-2017-12163 - --------------------------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 iQIVAwUBWfwPNIx+lLeg9Ub1AQi8PQ//X8MuR3FbRiEFcQd6lkQdbTCjAZ1UVtew FxNYfABbGeexr2Aay+vIp3TTB4VAPP/LX/3LmaNuFsaZoi3z7Gbv2kmYc2+9Y2L5 pxTmNdH45dfMfrdAPDBGyURANPDChAnqFV0XkTzysdD04CdAIyD1dw4x1Z0P6x4X 3Hew8ARJZfCAq2oH2G3pJ4jJjACfWhb/JuOqQZc5nRAMX8X1w04M3M0gpcuvYX2R vfoRGC1zVNgxoOSLQGzOXrzWX+ton6GzvH3HiNAbxsaBcpFGDvN5UvY1xGfyU2yO IvVu+a8iRaPpyiLx1cMDmt6gd/4/PwV7QL/cIZy2e3biMt4j+v1Tubuql0t+ciZA gsYciYtInJuaGw+JQk0jn2ggfNCiF5P4CXUlKFWCTOGHl+MHY/GJv+XbRlKTUAQ4 5337j7Q9TvAjm0e3PUZWH4CEV1olsV9hOw8S6b+nnZW0Oc17zCl2MIUhPcdpF+2P 3zzbHQvQplPf2zHqqL08i0NG0zdQQ1SoDR4kzXV62LvzGkXgo4SJka+YgSEe3CVm rAKTOLgtsnL2LS1ru7tJmeO3EEgM7eLlkL8igUBbI2oKD3IOSsXCU5S8TWRulTJv BZhR/gCrk4hcDixXzj7pb9eVXnpPj3YV7H15bsE3rFh7TTh6kH478warMwnY+8FN czfMKPknUh4= =lv+B -----END PGP SIGNATURE-----