- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201507-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Portage: Man-in-the-middle attack Date: July 10, 2015 Bugs: #469888 ID: 201507-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in Portage's urlopen function could allow a remote attacker to conduct a man-in-the-middle attack. Background ========== Portage is the package management and distribution system for Gentoo. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/portage < 2.1.12.2 >= 2.1.12.2 Description =========== Portage does not verify X.509 SSL certificate properly if HTTPS is used. Impact ====== A remote attacker can spoof servers and modify binary package lists via specially crafted certificate. Workaround ========== There is no known workaround at this time. Resolution ========== All Portage users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/portage-2.1.12.2" References ========== [ 1 ] CVE-2013-2100 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2100 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201507-16 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2015 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5