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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202003-55">
<title>Zsh: Privilege escalation</title>
<synopsis>A vulnerability in Zsh might allow an attacker to escalate
privileges.
</synopsis>
<product type="ebuild">zsh</product>
<announced>2020-03-25</announced>
<revised count="1">2020-03-25</revised>
<bug>711136</bug>
<access>local, remote</access>
<affected>
<package name="app-shells/zsh" auto="yes" arch="*">
<unaffected range="ge">5.8</unaffected>
<vulnerable range="lt">5.8</vulnerable>
</package>
</affected>
<background>
<p>A shell designed for interactive use, although it is also a powerful
scripting language.
</p>
</background>
<description>
<p>It was discovered that Zsh was insecure dropping privileges when
unsetting PRIVILEGED option.
</p>
</description>
<impact type="normal">
<p>An attacker could escalate privileges.</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All Zsh users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/zsh-5.8"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2019-20044">CVE-2019-20044</uri>
</references>
<metadata tag="requester" timestamp="2020-03-25T20:14:34Z">whissi</metadata>
<metadata tag="submitter" timestamp="2020-03-25T20:22:40Z">whissi</metadata>
</glsa>
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