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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="201808-02">
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<title>LinuX Containers user space utilities: Arbitrary file read</title>
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<synopsis>A vulnerability has been found in LXC which may allow for arbitrary
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file access (read-only).
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</synopsis>
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<product type="ebuild">lxc</product>
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<announced>2018-08-22</announced>
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<revised count="3">2018-10-17</revised>
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<bug>662780</bug>
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<access>local</access>
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<affected>
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<package name="app-emulation/lxc" auto="yes" arch="*">
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<unaffected range="ge">2.1.1-r1</unaffected>
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<vulnerable range="lt">2.1.1-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>LinuX Containers user space utilities.</p>
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</background>
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<description>
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<p>lxc-user-nic when asked to delete a network interface will
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unconditionally open a user provided path. This code path may be used by
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an unprivileged user to check for the existence of a path which they
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wouldn’t otherwise be able to reach.
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</p>
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</description>
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<impact type="low">
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<p>A local unprivileged user could use this flaw to access arbitrary files,
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including special device files.
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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 LXC 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 ">=app-emulation/lxc-2.1.1-r1"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2018-6556">CVE-2018-6556</uri>
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</references>
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<metadata tag="requester" timestamp="2018-08-13T17:16:02Z">irishluck83</metadata>
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<metadata tag="submitter" timestamp="2018-10-17T23:09:04Z">Zlogene</metadata>
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</glsa>
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