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[ GLSA 200412-09 ] ncpfs: Buffer overflow in ncplogin and ncpmap
From: Thierry Carrez <koon () gentoo org>
Date: Wed, 15 Dec 2004 10:21:34 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200412-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: ncpfs: Buffer overflow in ncplogin and ncpmap Date: December 15, 2004 Bugs: #72820 ID: 200412-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== ncpfs is vulnerable to a buffer overflow that could lead to local execution of arbitrary code with elevated privileges. Background ========== ncpfs is a NCP protocol network filesystem that allows access to Netware services, for example to mount volumes of NetWare servers or print to NetWare print queues. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-fs/ncpfs < 2.2.5 >= 2.2.5 Description =========== Karol Wiesek discovered a buffer overflow in the handling of the '-T' option in the ncplogin and ncpmap utilities, which are both installed as SUID root by default. Impact ====== A local attacker could trigger the buffer overflow by calling one of these utilities with a carefully crafted command line, potentially resulting in execution of arbitrary code with root privileges. Workaround ========== There is no known workaround at this time. Resolution ========== All ncpfs users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-fs/ncpfs-2.2.5" References ========== [ 1 ] Full Disclosure Advisory http://lists.netsys.com/pipermail/full-disclosure/2004-November/029563.html [ 2 ] CAN-2004-1079 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1079 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200412-09.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 2004 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/2.0
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- [ GLSA 200412-09 ] ncpfs: Buffer overflow in ncplogin and ncpmap Thierry Carrez (Dec 15)