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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200508-05">
<title>Heartbeat: Insecure temporary file creation</title>
<synopsis>
Heartbeat is vulnerable to symlink attacks, potentially allowing a local
user to overwrite arbitrary files.
</synopsis>
<product type="ebuild">Heartbeat</product>
<announced>August 07, 2005</announced>
<revised>August 07, 2005: 01</revised>
<bug>97175</bug>
<access>local</access>
<affected>
<package name="sys-cluster/heartbeat" auto="yes" arch="*">
<unaffected range="ge">1.2.3-r1</unaffected>
<vulnerable range="lt">1.2.3-r1</vulnerable>
</package>
</affected>
<background>
<p>
Heartbeat is a component of the High-Availability Linux project.
It it used to perform death-of-node detection, communications and
cluster management.
</p>
</background>
<description>
<p>
Eric Romang has discovered that Heartbeat insecurely creates
temporary files with predictable filenames.
</p>
</description>
<impact type="normal">
<p>
A local attacker could create symbolic links in the temporary file
directory, pointing to a valid file somewhere on the filesystem. When a
vulnerable script is executed, this could lead to the file being
overwritten with the rights of the user running the affected
application.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Heartbeat users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=sys-cluster/heartbeat-1.2.3-r1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2231">CAN-2005-2231</uri>
</references>
<metadata tag="requester" timestamp="Fri, 05 Aug 2005 07:37:14 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Fri, 05 Aug 2005 14:33:59 +0000">
formula7
</metadata>
<metadata tag="bugReady" timestamp="Fri, 05 Aug 2005 14:54:26 +0000">
formula7
</metadata>
</glsa>