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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1075 ubuntu-release-upgrader vulnerability 10 April 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ubuntu-release-upgrader Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Increased Privileges -- Remote/Unauthenticated Resolution: Patch/Upgrade Original Bulletin: http://www.ubuntu.com/usn/usn-3623-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3623-1: ubuntu-release-upgrader vulnerability 9 April 2018 ubuntu-release-upgrader vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 17.10 o Ubuntu 16.04 LTS o Ubuntu 14.04 LTS Summary ubuntu-release-upgrader incorrectly opened as browser as an administrator. Software Description o ubuntu-release-upgrader - manage release upgrades Details It was discovered that ubuntu-release-upgrader did not correctly drop permissions before opening a browser to view the release notes. This update fixes the issue. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 17.10 python3-distupgrade - 1:17.10.11 Ubuntu 16.04 LTS python3-distupgrade - 1:16.04.25 Ubuntu 14.04 LTS python3-distupgrade - 1:0.220.10 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 o https://usn.ubuntu.com/usn/usn-3623-1 o https://launchpad.net/bugs/1174007 - --------------------------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 iQIVAwUBWsxUhYx+lLeg9Ub1AQiwZA/9HwnB/r6R605EHrS2r/hesMX6L2L6JR4C ZMMdufXFLFEwh+wdn8ZkwSQ3I403r1EAYZO6twfdRsKa/TJDFGJO1oC7/u9lcnmD FbDmr6aznPX7lxeKUVVdloCHa+P07P8kI7W5hMYYViqNYbs345JtsSvvI6iRht+M aErc7olzDGxri64xz4dgZLSw9WCVgJGxckm5mbsZXJsoVIS+FIXQr+yyXxj4rPUn X1YcRDU0KX0cy2P40g/vaqeQqyx8JDp5oxaYH1t0sFESXyqROE/XGs2hvrWGvoEY w2ca3yTZF6fIsvAirK8hVrx8zQ1rBSkZnikHMu39EOoUQrAwxEf1N78J3cYa3fuL 6ZYvh5mgg+YTgACZE+TRC/2xY2jGxCNhxvCsAnHLofPsTV9oXc2MpoDlUxmx348D ya7h0Ur3zbVWTzO/1MwjkHFv+mhHQfh8l0MLbD7s/ZUQY3z3A838XSfRJvBUeJH0 nf6bidVzQVeU9epJF7O83xV6l0HlNLVTTMezzK1K22gNY94hz047pEqBVAKTCCqx nBEvcMipT0eM/u4w0nGxF+Iu4HRa6LN8IunSkv1JUVpnOLyCKStJADKMUkT2oL2H Z1UhsFGDvmTOVuDOSdm1YSQH7NIG87RpqnmtLmYwFzczp9tpRzlLTKrf30ErSAXO hjQz9An+PxQ= =jERp -----END PGP SIGNATURE-----