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