- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200805-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Linux Terminal Server Project: Multiple vulnerabilities Date: May 09, 2008 Bugs: #215699 ID: 200805-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been discovered in components shipped with LTSP which allow remote attackers to compromise terminal clients. Background ========== The Linux Terminal Server Project adds thin-client support to Linux servers. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/ltsp < 5.0 Vulnerable! ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers. Description =========== LTSP version 4.2, ships prebuilt copies of programs such as the Linux Kernel, the X.org X11 server (GLSA 200705-06, GLSA 200710-16, GLSA 200801-09), libpng (GLSA 200705-24, GLSA 200711-08), Freetype (GLSA 200705-02, GLSA 200705-22) and OpenSSL (GLSA 200710-06, GLSA 200710-30) which were subject to multiple security vulnerabilities since 2006. Please note that the given list of vulnerabilities might not be exhaustive. Impact ====== A remote attacker could possibly exploit vulnerabilities in the aforementioned programs and execute arbitrary code, disclose sensitive data or cause a Denial of Service within LTSP 4.2 clients. Workaround ========== There is no known workaround at this time. Resolution ========== LTSP 4.2 is not maintained upstream in favor of version 5. Since version 5 is not yet available in Gentoo, the package has been masked. We recommend that users unmerge LTSP: # emerge --unmerge net-misc/ltsp If you have a requirement for Linux Terminal Servers, please either set up a terminal server by hand or use one of the distributions that already migrated to LTSP 5. If you want to contribute to the integration of LTSP 5 in Gentoo, or want to follow its development, find details in bug 177580. References ========== [ 1 ] GLSA 200705-02 http://www.gentoo.org/security/en/glsa/glsa-200705-02.xml [ 2 ] GLSA 200705-06 http://www.gentoo.org/security/en/glsa/glsa-200705-06.xml [ 3 ] GLSA 200705-22 http://www.gentoo.org/security/en/glsa/glsa-200705-22.xml [ 4 ] GLSA 200705-24 http://www.gentoo.org/security/en/glsa/glsa-200705-24.xml [ 5 ] GLSA 200710-06 http://www.gentoo.org/security/en/glsa/glsa-200710-06.xml [ 6 ] GLSA 200710-16 http://www.gentoo.org/security/en/glsa/glsa-200710-16.xml [ 7 ] GLSA 200710-30 http://www.gentoo.org/security/en/glsa/glsa-200710-30.xml [ 8 ] GLSA 200711-08 http://www.gentoo.org/security/en/glsa/glsa-200711-08.xml [ 9 ] GLSA 200801-09 http://www.gentoo.org/security/en/glsa/glsa-200801-09.xml [ 10 ] Gentoo bug 177580: Port LTSP 5 to Gentoo https://bugs.gentoo.org/177580 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200805-07.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 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