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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202007-40">
<title>Thin: Privilege escalation</title>
<synopsis>A vulnerability was discovered in Thin which may allow local
attackers to kill arbitrary processes (denial of service).
</synopsis>
<product type="ebuild">thin</product>
<announced>2020-07-27</announced>
<revised count="1">2020-07-27</revised>
<bug>642200</bug>
<access>local</access>
<affected>
<package name="www-servers/thin" auto="yes" arch="*">
<vulnerable range="le">1.7.2</vulnerable>
</package>
</affected>
<background>
<p>Thin is a small and fast Ruby web server.</p>
</background>
<description>
<p>It was discovered that Gentoo’s Thin ebuild does not properly handle
its temporary runtime directories. This only affects OpenRC systems, as
the flaw was exploitable via the init script.
</p>
</description>
<impact type="normal">
<p>A local attacker could cause denial of service by killing arbitrary
processes.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>Gentoo has discontinued support for Thin. We recommend that users
unmerge Thin:
</p>
<code>
# emerge --unmerge "www-servers/thin"
</code>
<p>NOTE: The Gentoo developer(s) maintaining Thin have discontinued support
at this time. It may be possible that a new Gentoo developer will update
Thin at a later date. There are many other web servers available in the
tree in the www-servers category.
</p>
</resolution>
<references>
</references>
<metadata tag="requester" timestamp="2020-06-14T00:47:13Z">sam_c</metadata>
<metadata tag="submitter" timestamp="2020-07-27T00:48:08Z">sam_c</metadata>
</glsa>
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