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Gentoo: GLSA-200608-25 High: X.org Local Privilege Escalation

X.org, libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm are vulnerable to local privilege escalations because of unchecked setuid() calls. [More...]. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200608-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: X.org and some X.org libraries: Local privilege escalations Date: August 28, 2006 Bugs: #135974 ID: 200608-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= X.org, libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm are vulnerable to local privilege escalations because of unchecked setuid() calls. Background ========= X.org is an implementation of the X Window System. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-apps/xdm < 1.0.4-r1 > = 1.0.4-r1 2 x11-apps/xinit < 1.0.2-r6 > = 1.0.2-r6 3 x11-apps/xload < 1.0.1-r1 > = 1.0.1-r1 4 x11-apps/xf86dga < 1.0.1-r1 > = 1.0.1-r1 5 x11-base/xorg-x11 < 6.9.0-r2 *> = 6.8.2-r8 > = 6.9.0-r2 6 x11-base/xorg-server < 1.1.0-r1 *> = 1.0.2-r6 > = 1.1.0-r1 7 x11-libs/libx11 < 1.0.1-r1 > = 1.0.1-r1 8 x11-libs/xtrans < 1.0.0-r1 > = 1.0.0-r1 9 x11-terms/xterm < 215 > = 215 10 app-emulation/emul-linux-x86-xlibs < 7.0-r2 > = 7.0-r2 ------------------------------------------------------------------- # Package 10 [app-emulation/emul-linux-x86-xlibs] only applies to AMD64 users. NOTE: Any packages listed without architecture tags apply to all architectures... ------------------------------------------------------------------- 10 affected packages ------------------------------------------------------------------- Description ========== Several X.org libraries and X.org itself contain system calls to set*uid() functions, without checking their result. Impact ===== Local users could deliberately exceed their assigned resource limits and elevate their privileges after an unsuccessful set*uid() system call. This requires resource limits to be enabled on the machine. Workaround ========= There is no known workaround at this time. Resolution ========= All X.Org xdm users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-apps/xdm-1.0.4-r1" All X.Org xinit users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-apps/xinit-1.0.2-r6" All X.Org xload users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-apps/xload-1.0.1-r1" All X.Org xf86dga users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-apps/xf86dga-1.0.1-r1" All X.Org users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-base/xorg-x11-6.9.0-r2" All X.Org X servers users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-base/xorg-server-1.1.0-r1" All X.Org X11 library users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-libs/libx11-1.0.1-r1" All X.Org xtrans library users shouldupgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-libs/xtrans-1.0.1-r1" All xterm users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =x11-terms/xterm-215" All users of the X11R6 libraries for emulation of 32bit x86 on amd64 should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =app-emulation/emul-linux-x86-xlibs-7.0-r2" Please note that the fixed packages have been available for most architectures since June 30th but the GLSA release was held up waiting for the remaining architectures. References ========= [ 1 ] X.Org security advisory https://lists.freedesktop.org/archives/xorg/2006-June/016146.html Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200608-25 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 This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2006 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. https://creativecommons.org/licenses/by-sa/2.5/ . Address the elevated permission vulnerabilities within X.org and its related libraries, referencing the critical security advisory released by Gentoo.. Gentoo Security Advisory,X.org Escalation,Local Privilege,Library Updates. . LinuxSecurity.com Team

Aug 28, 2006 Gentoo