<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201612-25"> <title>CrackLib: Buffer overflow</title> <synopsis>A vulnerability in CrackLib could lead to the execution of arbitrary code. </synopsis> <product type="ebuild">cracklib</product> <announced>2016-12-08</announced> <revised count="1">2016-12-08</revised> <bug>591456</bug> <access>local</access> <affected> <package name="sys-libs/cracklib" auto="yes" arch="*"> <unaffected range="ge">2.9.6-r1</unaffected> <vulnerable range="lt">2.9.6-r1</vulnerable> </package> </affected> <background> <p>CrackLib is a library used to enforce strong passwords by comparing user selected passwords to words in chosen word lists. </p> </background> <description> <p>A stack-based buffer overflow was discovered in the FascistGecosUser function of lib/fascist.c. </p> </description> <impact type="normal"> <p>A local attacker could set a specially crafted GECOS field value in “/etc/passwd”; possibly resulting in the execution of arbitrary code with the privileges of the process, a Denial of Service condition, or the escalation of privileges. </p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All CrackLib users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/cracklib-2.9.6-r1" </code> </resolution> <references> <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6318">CVE-2016-6318</uri> </references> <metadata tag="requester" timestamp="2015-12-31T02:46:03Z"> BlueKnight </metadata> <metadata tag="submitter" timestamp="2016-12-08T13:55:10Z">whissi</metadata> </glsa>