<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201710-16"> <title>Shadow: Buffer overflow</title> <synopsis>A vulnerability found in Shadow may allow remote attackers to cause a Denial of Service condition or produce other unspecified behaviors. </synopsis> <product type="ebuild">shadow</product> <announced>2017-10-15</announced> <revised count="1">2017-10-15</revised> <bug>627044</bug> <access>remote</access> <affected> <package name="sys-apps/shadow" auto="yes" arch="*"> <unaffected range="ge">4.5</unaffected> <vulnerable range="lt">4.5</vulnerable> </package> </affected> <background> <p>Shadow is a set of tools to deal with user accounts.</p> </background> <description> <p>Malformed input in the newusers tool may produce crashes and other unspecified behaviors. </p> </description> <impact type="normal"> <p>A remote attacker could possibly cause a Denial of Service condition or bypass privilege boundaries in some web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts. </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-4.5" </code> </resolution> <references> <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12424"> CVE-2017-12424 </uri> </references> <metadata tag="requester" timestamp="2017-10-13T22:41:20Z">b-man</metadata> <metadata tag="submitter" timestamp="2017-10-15T20:17:52Z">chrisadr</metadata> </glsa>