<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="202008-09"> <title>Shadow: Privilege escalation</title> <synopsis>Multiple Shadow utilities were installed with setuid permissions, allowing possible root privilege escalation. </synopsis> <product type="ebuild">shadow</product> <announced>2020-08-25</announced> <revised count="1">2020-08-25</revised> <bug>702252</bug> <access>local</access> <affected> <package name="sys-apps/shadow" auto="yes" arch="*"> <unaffected range="ge">4.8-r3</unaffected> <vulnerable range="lt">4.8-r3</vulnerable> </package> </affected> <background> <p>Shadow is a set of tools to deal with user accounts.</p> </background> <description> <p>When Shadow was installed with the PAM use flag, setuid binaries provided by Shadow were not properly restricted. </p> </description> <impact type="high"> <p>A local attacker could escalate privileges to root.</p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All Shadow users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.8-r3" </code> </resolution> <references> <uri link="https://nvd.nist.gov/vuln/detail/CVE-2019-19882">CVE-2019-19882</uri> <uri link="https://github.com/shadow-maint/shadow/pull/199">Upstream mitigation </uri> </references> <metadata tag="requester" timestamp="2020-08-24T00:55:20Z">sam_c</metadata> <metadata tag="submitter" timestamp="2020-08-25T12:51:43Z">sam_c</metadata> </glsa>