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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200810-02">
<title>Portage: Untrusted search path local root vulnerability</title>
<synopsis>
A search path vulnerability in Portage allows local attackers to execute
commands with root privileges if emerge is called from untrusted
directories.
</synopsis>
<product type="ebuild">portage</product>
<announced>October 09, 2008</announced>
<revised>October 09, 2008: 01</revised>
<bug>239560</bug>
<access>local</access>
<affected>
<package name="sys-apps/portage" auto="yes" arch="*">
<unaffected range="ge">2.1.4.5</unaffected>
<vulnerable range="lt">2.1.4.5</vulnerable>
</package>
</affected>
<background>
<p>
Portage is Gentoo's package manager which is responsible for
installing, compiling and updating all packages on the system through
the Gentoo rsync tree.
</p>
</background>
<description>
<p>
The Gentoo Security Team discovered that several ebuilds, such as
sys-apps/portage, net-mail/fetchmail or app-editors/leo execute Python
code using "python -c", which includes the current working directory in
Python's module search path. For several ebuild functions, Portage did
not change the working directory from emerge's working directory.
</p>
</description>
<impact type="high">
<p>
A local attacker could place a specially crafted Python module in a
directory (such as /tmp) and entice the root user to run commands such
as "emerge sys-apps/portage" from that directory, resulting in the
execution of arbitrary Python code with root privileges.
</p>
</impact>
<workaround>
<p>
Do not run "emerge" from untrusted working directories.
</p>
</workaround>
<resolution>
<p>
All Portage users should upgrade to the latest version:
</p>
<code>
# cd /root
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=sys-apps/portage-2.1.4.5&quot;</code>
<p>
NOTE: To upgrade to Portage 2.1.4.5 using 2.1.4.4 or prior, you must
run emerge from a trusted working directory, such as "/root".
</p>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4394">CVE-2008-4394</uri>
</references>
<metadata tag="submitter" timestamp="Wed, 08 Oct 2008 16:50:57 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Wed, 08 Oct 2008 16:58:04 +0000">
rbu
</metadata>
</glsa>