From jaervosz@gentoo.org Tue Nov 22 17:36:56 2005 From: Sune Kloppenborg Jeppesen To: gentoo-announce@gentoo.org Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com Date: Tue, 22 Nov 2005 23:33:07 +0100 Subject: [Full-disclosure] [ GLSA 200511-19 ] eix: Insecure temporary file creation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200511-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: eix: Insecure temporary file creation Date: November 22, 2005 Bugs: #112061 ID: 200511-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== eix has an insecure temporary file creation vulnerability, potentially allowing a local user to overwrite arbitrary files. Background ========== eix is a small utility for searching ebuilds with indexing for fast results. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-portage/eix < 0.5.0_pre2 >= 0.5.0_pre2 *>= 0.3.0-r2 Description =========== Eric Romang discovered that eix creates a temporary file with a predictable name. eix creates a temporary file in /tmp/eix.*.sync where * is the process ID of the shell running eix. Impact ====== A local attacker can watch the process list and determine the process ID of the shell running eix while the "emerge --sync" command is running, then create a link from the corresponding temporary file to a system file, which would result in the file being overwritten with the rights of the user running the application. Workaround ========== There is no known workaround at this time. Resolution ========== All eix users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose app-portage/eix Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200511-19.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 2005 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 [ Part 1.2, Application/PGP-SIGNATURE 196bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/