- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200805-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Multiple X11 terminals: Local privilege escalation Date: May 07, 2008 Bugs: #216833, #217819, #219746, #219750, #219754, #219760, #219762 ID: 200805-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability was found in aterm, Eterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm, allowing for local privilege escalation. Background ========== Aterm, Eterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm are X11 terminal emulators. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-terms/aterm < 1.0.1-r1 >= 1.0.1-r1 2 x11-terms/eterm < 0.9.4-r1 >= 0.9.4-r1 3 x11-terms/mrxvt < 0.5.3-r2 >= 0.5.3-r2 4 x11-terms/multi-aterm < 0.2.1-r1 >= 0.2.1-r1 5 x11-terms/rxvt < 2.7.10-r4 >= 2.7.10-r4 6 x11-terms/rxvt-unicode < 9.02-r1 >= 9.02-r1 7 x11-terms/wterm < 6.2.9-r3 >= 6.2.9-r3 ------------------------------------------------------------------- 7 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== Bernhard R. Link discovered that Eterm opens a terminal on :0 if the "-display" option is not specified and the DISPLAY environment variable is not set. Further research by the Gentoo Security Team has shown that aterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm are also affected. Impact ====== A local attacker could exploit this vulnerability to hijack X11 terminals of other users. Workaround ========== There is no known workaround at this time. Resolution ========== All aterm users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/aterm-1.0.1-r1" All Eterm users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/eterm-0.9.4-r1" All Mrxvt users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/mrxvt-0.5.3-r2" All multi-aterm users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/multi-aterm-0.2.1-r1" All RXVT users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/rxvt-2.7.10-r4" All rxvt-unicode users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/rxvt-unicode-9.02-r1" All wterm users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-terms/wterm-6.2.9-r3" References ========== [ 1 ] CVE-2008-1142 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1142 [ 2 ] CVE-2008-1692 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1692 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200805-03.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 2008 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