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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200611-23">
<title>Mono: Insecure temporary file creation</title>
<synopsis>
Mono is vulnerable to linking attacks, potentially allowing a local user to
overwrite arbitrary files.
</synopsis>
<product type="ebuild">mono</product>
<announced>November 28, 2006</announced>
<revised>November 28, 2006: 01</revised>
<bug>150264</bug>
<access>local</access>
<affected>
<package name="dev-lang/mono" auto="yes" arch="*">
<unaffected range="ge">1.1.13.8.1</unaffected>
<vulnerable range="lt">1.1.13.8.1</vulnerable>
</package>
</affected>
<background>
<p>
Mono provides the necessary software to develop and run .NET client and
server applications.
</p>
</background>
<description>
<p>
Sebastian Krahmer of the SuSE Security Team discovered that the
System.CodeDom.Compiler classes of Mono create temporary files with
insecure permissions.
</p>
</description>
<impact type="normal">
<p>
A local attacker could create links in the temporary file directory,
pointing to a valid file somewhere on the filesystem. When an affected
class is called, this could result in the file being overwritten with
the rights of the user running the script.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Mono users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=dev-lang/mono-1.1.13.8.1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5072">CVE-2006-5072</uri>
</references>
<metadata tag="requester" timestamp="Fri, 24 Nov 2006 09:48:51 +0000">
jaervosz
</metadata>
<metadata tag="submitter" timestamp="Mon, 27 Nov 2006 17:16:01 +0000">
falco
</metadata>
<metadata tag="bugReady" timestamp="Tue, 28 Nov 2006 12:13:57 +0000">
falco
</metadata>
</glsa>