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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201706-01">
<title>MUNGE: Privilege escalation </title>
<synopsis>Gentoo's MUNGE ebuilds are vulnerable to privilege escalation due
to improper permissions.
</synopsis>
<product type="ebuild">munge</product>
<announced>2017-06-06</announced>
<revised count="1">2017-06-06</revised>
<bug>602596</bug>
<access>local</access>
<affected>
<package name="sys-auth/munge" auto="yes" arch="*">
<unaffected range="ge">0.5.10-r2</unaffected>
<vulnerable range="lt">0.5.10-r2</vulnerable>
</package>
</affected>
<background>
<p>An authentication service for creating and validating credentials.</p>
</background>
<description>
<p>It was discovered that Gentoo’s default MUNGE installation suffered
from a privilege escalation vulnerability (munge user to root) due to
improper permissions and a runscript which called chown() on a user
controlled file.
</p>
</description>
<impact type="high">
<p>A local attacker, who either is already MUNGE’s system user or belongs
to MUNGE’s group, could potentially escalate privileges.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All MUNGE users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-auth/munge-0.5.10-r2"
</code>
</resolution>
<references>
</references>
<metadata tag="requester" timestamp="2017-01-08T22:27:29Z">whissi</metadata>
<metadata tag="submitter" timestamp="2017-06-06T06:21:40Z">whissi</metadata>
</glsa>
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