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Gentoo Linux Security Advisory GLSA 200410-16
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http://security.gentoo.org/
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Severity: Normal
Title: PostgreSQL: Insecure temporary file use in
make_oidjoins_check
Date: October 18, 2004
Bugs: #66371
ID: 200410-16
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Synopsis
========
The make_oidjoins_check script, part of the PostgreSQL package, is
vulnerable to symlink attacks, potentially allowing a local user to
overwrite arbitrary files with the rights of the user running the
utility.
Background
==========
PostgreSQL is an open source database based on the POSTGRES database
management system. It includes several contributed scripts including
the make_oidjoins_check script.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-db/postgresql <= 7.4.5-r1 >= 7.4.5-r2
*>= 7.3.7-r2
Description
===========
The make_oidjoins_check script insecurely creates temporary files in
world-writeable directories with predictable names.
Impact
======
A local attacker could create symbolic links in the temporary files
directory, pointing to a valid file somewhere on the filesystem. When
make_oidjoins_check is called, this would result in file overwrite with
the rights of the user running the utility, which could be the root
user.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All PostgreSQL users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=dev-db/postgresql-7.4.5-r2"
# emerge ">=dev-db/postgresql-7.4.5-r2"
Upgrade notes: PostgreSQL 7.3.x users should upgrade to the latest
available 7.3.x version to retain database compatibility.
References
==========
[ 1 ] Trustix Advisory #2004-0050
http://www.trustix.org/errata/2004/0050/
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200410-16.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@xxxxxxxxxx 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/1.0
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