- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200509-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: X.Org: Heap overflow in pixmap allocation Date: September 12, 2005 Bugs: #105688 ID: 200509-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== An integer overflow in pixmap memory allocation potentially allows any X.Org user to execute arbitrary code with elevated privileges. Background ========== X.Org is X.Org Foundation's Public Implementation of the X Window System. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-base/xorg-x11 < 6.8.2-r3 >= 6.8.2-r3 Description =========== X.Org is missing an integer overflow check during pixmap memory allocation. Impact ====== An X.Org user could exploit this issue to make the X server execute arbitrary code with elevated privileges. Workaround ========== There is no known workaround at this time. Resolution ========== All X.org users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.8.2-r3" References ========== [ 1 ] CAN-2005-2495 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2495 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200509-07.xml 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 http://bugs.gentoo.org. License ======= Copyright 2005 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/2.0