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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0500 -- [UNIX/Linux] Multiple X11 terminals: Local privilege escalation 14 May 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: X11 terminals Publisher: Gentoo Operating System: Gentoo UNIX variants (UNIX, Linux) Impact: Increased Privileges Access: Existing Account CVE Names: CVE-2008-1692 CVE-2008-1142 Original Bulletin: http://security.gentoo.org/glsa/glsa-200805-03.xml Comment: This advisory references vulnerabilities in products which run on platforms other than Gentoo. It is recommended that administrators running X11 terminal emulators check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBSCpjRyh9+71yA2DNAQJJqQP8DbTMuMZcLuR/BYqA6t7sN5GbdmLd2nOj Gb9sHh37lBv4S3fyW77c6Bs5KU8X+Qo1iwZTVL/R5h/Svf2HZvKkpPocDhie57OY QbrvpI+rlNKt0bOEKcGnbQyGDraXwQjqyK71qjqDp4y8AEFjMAWcjh0XfCbOoknG llLqPqGSiF4= =ss6t -----END PGP SIGNATURE-----