<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201801-10"> <title>LibXfont, LibXfont2: Arbitrary file access</title> <synopsis>A vulnerability has been found in LibXfont and LibXfont2 which may allow for arbitrary file access. </synopsis> <product type="ebuild">LibXfont, LibXfont2</product> <announced>2018-01-08</announced> <revised count="1">2018-01-08</revised> <bug>639064</bug> <access>local</access> <affected> <package name="x11-libs/libXfont" auto="yes" arch="*"> <unaffected range="ge">1.5.4</unaffected> <vulnerable range="lt">1.5.4</vulnerable> </package> <package name="x11-libs/libXfont2" auto="yes" arch="*"> <unaffected range="ge">2.0.3</unaffected> <vulnerable range="lt">2.0.3</vulnerable> </package> </affected> <background> <p>X.Org Xfont library.</p> </background> <description> <p>It was discovered that libXfont incorrectly followed symlinks when opening font files. </p> </description> <impact type="normal"> <p>A local unprivileged user could use this flaw to cause the X server to access arbitrary files, including special device files. </p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All LibXfont users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=x11-libs/libXfont-1.5.4" </code> <p>All LibXfont2 users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=x11-libs/libXfont2-2.0.3" </code> </resolution> <references> <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-16611"> CVE-2017-16611 </uri> </references> <metadata tag="requester" timestamp="2018-01-05T05:31:41Z">jmbailey</metadata> <metadata tag="submitter" timestamp="2018-01-08T12:26:24Z">jmbailey</metadata> </glsa>