27 March 2018
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.0865 Screen Resolution Extra vulnerability 27 March 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: screen-resolution-extra Publisher: Ubuntu Operating System: Ubuntu Linux variants Impact/Access: Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-8885 Original Bulletin: http://www.ubuntu.com/usn/usn-3607-1 Comment: This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running screen-resolution-extra check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3607-1 March 26, 2018 screen-resolution-extra vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.10 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Screen Resolution Extra could be tricked into bypassing PolicyKit authorizations. Software Description: - - screen-resolution-extra: Extension for the GNOME screen resolution applet Details: It was discovered that Screen Resolution Extra was using PolicyKit in an unsafe manner. A local attacker could potentially exploit this issue to bypass intended PolicyKit authorizations. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.10: screen-resolution-extra 0.17.1.1 Ubuntu 16.04 LTS: screen-resolution-extra 0.17.1.1~16.04.1 Ubuntu 14.04 LTS: screen-resolution-extra 0.17.1.1~14.04.1 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3607-1 CVE-2018-8885 Package Information: https://launchpad.net/ubuntu/+source/screen-resolution-extra/0.17.1.1 https://launchpad.net/ubuntu/+source/screen-resolution-extra/0.17.1.1~16.04.1 https://launchpad.net/ubuntu/+source/screen-resolution-extra/0.17.1.1~14.04.1 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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: email@example.com 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). 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