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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="202007-40">
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<title>Thin: Privilege escalation</title>
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<synopsis>A vulnerability was discovered in Thin which may allow local
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attackers to kill arbitrary processes (denial of service).
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</synopsis>
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<product type="ebuild">thin</product>
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<announced>2020-07-27</announced>
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<revised count="1">2020-07-27</revised>
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<bug>642200</bug>
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<access>local</access>
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<affected>
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<package name="www-servers/thin" auto="yes" arch="*">
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<vulnerable range="le">1.7.2</vulnerable>
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</package>
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</affected>
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<background>
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<p>Thin is a small and fast Ruby web server.</p>
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</background>
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<description>
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<p>It was discovered that Gentoo’s Thin ebuild does not properly handle
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its temporary runtime directories. This only affects OpenRC systems, as
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the flaw was exploitable via the init script.
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</p>
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</description>
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<impact type="normal">
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<p>A local attacker could cause denial of service by killing arbitrary
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processes.
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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>Gentoo has discontinued support for Thin. We recommend that users
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unmerge Thin:
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</p>
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<code>
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# emerge --unmerge "www-servers/thin"
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</code>
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<p>NOTE: The Gentoo developer(s) maintaining Thin have discontinued support
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at this time. It may be possible that a new Gentoo developer will update
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Thin at a later date. There are many other web servers available in the
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tree in the www-servers category.
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</p>
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</resolution>
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<references>
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</references>
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<metadata tag="requester" timestamp="2020-06-14T00:47:13Z">sam_c</metadata>
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<metadata tag="submitter" timestamp="2020-07-27T00:48:08Z">sam_c</metadata>
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</glsa>
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