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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.0165 -- [UNIX/Linux] GNU Emacs, XEmacs: Multiple vulnerabilities 24 February 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: GNU Emacs XEmacs Publisher: Gentoo Operating System: Gentoo UNIX variants (UNIX, Linux, OSX) Impact: Execute Arbitrary Code/Commands Access: Remote/Unauthenticated CVE Names: CVE-2008-3949 CVE-2008-2142 Original Bulletin: http://security.gentoo.org/glsa/glsa-200902-06.xml Comment: This advisory references vulnerabilities in products which run on platforms other than Gentoo. It is recommended that administrators running GNU Emacs or XEmacs check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200902-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: GNU Emacs, XEmacs: Multiple vulnerabilities Date: February 23, 2009 Bugs: #221197, #236498 ID: 200902-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Two vulnerabilities were found in GNU Emacs, possibly leading to user-assisted execution of arbitrary code. One also affects edit-utils in XEmacs. Background ========== GNU Emacs and XEmacs are highly extensible and customizable text editors. edit-utils are miscellaneous extensions to XEmacs. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-editors/emacs < 22.2-r3 >= 22.2-r3 *>= 21.4-r17 < 19 2 app-xemacs/edit-utils < 2.39 >= 2.39 ------------------------------------------------------------------- 2 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== Morten Welinder reports about GNU Emacs and edit-utils in XEmacs: By shipping a .flc accompanying a source file (.c for example) and setting font-lock-support-mode to fast-lock-mode in the source file through local variables, any Lisp code in the .flc file is executed without warning (CVE-2008-2142). Romain Francoise reported a security risk in a feature of GNU Emacs related to interacting with Python. The vulnerability arises because Python, by default, prepends the current directory to the module search path, allowing for arbitrary code execution when launched from a specially crafted directory (CVE-2008-3949). Impact ====== Remote attackers could entice a user to open a specially crafted file in GNU Emacs, possibly leading to the execution of arbitrary Emacs Lisp code or arbitrary Python code with the privileges of the user running GNU Emacs or XEmacs. Workaround ========== There is no known workaround at this time. Resolution ========== All GNU Emacs users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-editors/emacs-22.2-r3" All edit-utils users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-xemacs/edit-utils-2.39" References ========== [ 1 ] CVE-2008-2142 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2142 [ 2 ] CVE-2008-3949 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3949 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200902-06.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 2009 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. 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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 iD8DBQFJo1QfNVH5XJJInbgRAmxSAJoDu5yF7nwse6pr7gMsyOaUSgSD2QCfZ+yt nLOtc00YBdnGNNDjh0clp8A= =JaU2 -----END PGP SIGNATURE-----