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<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200407-01">
<title>Esearch: Insecure temp file handling</title>
<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.
</synopsis>
<product type="ebuild">esearch</product>
<announced>July 01, 2004</announced>
<revised>May 22, 2006: 02</revised>
<bug>55424</bug>
<access>local</access>
<affected>
<package name="app-portage/esearch" auto="yes" arch="*">
<unaffected range="ge">0.6.2</unaffected>
<vulnerable range="le">0.6.1</vulnerable>
</package>
</affected>
<background>
<p>
Esearch is a replacement for the Portage command "emerge search". It
uses an index to speed up searching of the Portage tree.
</p>
</background>
<description>
<p>
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.
</p>
</description>
<impact type="normal">
<p>
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.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time. All users should upgrade to
the latest available version of esearch.
</p>
</workaround>
<resolution>
<p>
All users should upgrade to the latest available version of esearch, as
follows:
</p>
<code>
# emerge sync
# emerge -pv ">=app-portage/esearch-0.6.2"
# emerge ">=app-portage/esearch-0.6.2"</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0655">CVE-2004-0655</uri>
</references>
<metadata tag="submitter">
condordes
</metadata>
</glsa>
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