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Gentoo: GLSA-200407-01 Normal: Esearch Temp File Handling Flaw

The eupdatedb utility in esearch creates a file in /tmp without first checking for symlinks. This makes it possible for any user to create arbitrary files. [More...]. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200407-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Esearch: Insecure temp file handling Date: July 01, 2004 Bugs: #55424 ID: 200407-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= The eupdatedb utility in esearch creates a file in /tmp without first checking for symlinks. This makes it possible for any user to create arbitrary files. Background ========= Esearch is a replacement for the Portage command "emerge search". It uses an index to speed up searching of the Portage tree. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-portage/esearch = 0.6.2 Description ========== The eupdatedb utility uses a temporary file (/tmp/esearchdb.py.tmp) to indicate that the eupdatedb process is running. When run, eupdatedb checks to see if this file exists, but it does not check to see if it is a broken symlink. In the event that the file is a broken symlink, the script will create the file pointed to by the symlink, instead of printing an error and exiting. Impact ===== An attacker could create a symlink from /tmp/esearchdb.py.tmp to a nonexistent file (such as /etc/nologin), and the file will be created the next time esearchdb is run. Workaround ========= There is no known workaround at this time. All users should upgrade to the latestavailable version of esearch. Resolution ========= All users should upgrade to the latest available version of esearch, as follows: # emerge sync # emerge -pv "> =app-portage/esearch-0.6.2" # emerge "> =app-portage/esearch-0.6.2" Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200407-01 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 This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2004 Gentoo Technologies, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/1.0/ . Critical vulnerability in Esearch temporary file management on Gentoo necessitates prompt updates to address potential security threats. Learn further.. Gentoo Security,Esearch Update,Temp File Handling,Security Advisory,Linux Security. . LinuxSecurity.com Team

Jul 01, 2004 Gentoo