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[ GLSA 200710-18 ] util-linux: Local privilege escalation
From: Raphael Marichez <falco () gentoo org>
Date: Thu, 18 Oct 2007 22:06:37 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200710-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: util-linux: Local privilege escalation Date: October 18, 2007 Bugs: #195390 ID: 200710-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The mount and umount programs might allow local attackers to gain root privileges. Background ========== util-linux is a suite of Linux programs including mount and umount, programs used to mount and unmount filesystems. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/util-linux < 2.12r-r8 >= 2.12r-r8 Description =========== Ludwig Nussel discovered that the check_special_mountprog() and check_special_umountprog() functions call setuid() and setgid() in the wrong order and do not check the return values, which can lead to privileges being dropped improperly. Impact ====== A local attacker may be able to exploit this vulnerability by using mount helpers such as the mount.nfs program to gain root privileges and run arbitrary commands. Workaround ========== There is no known workaround at this time. Resolution ========== All util-linux users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/util-linux-2.12r-r8" References ========== [ 1 ] CVE-2007-5191 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5191 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-18.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 2007 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
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- [ GLSA 200710-18 ] util-linux: Local privilege escalation Raphael Marichez (Oct 18)