<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201611-08"> <title>libpng: Multiple vulnerabilities</title> <synopsis>Multiple vulnerabilities have been found in libpng, the worst of which may allow remote attackers to cause Denial of Service. </synopsis> <product type="ebuild">libpng</product> <announced>2016-11-15</announced> <revised count="1">2016-11-15</revised> <bug>564244</bug> <bug>565678</bug> <bug>568216</bug> <access>remote</access> <affected> <package name="media-libs/libpng" auto="yes" arch="*"> <unaffected range="ge" slot="1.2">1.2.56</unaffected> <unaffected range="ge" slot="1.5">1.5.26</unaffected> <unaffected range="ge">1.6.21</unaffected> <vulnerable range="lt">1.6.21</vulnerable> </package> </affected> <background> <p>libpng is a standard library used to process PNG (Portable Network Graphics) images. It is used by several other programs, including web browsers and potentially server processes. </p> </background> <description> <p>Multiple vulnerabilities were found in libpng. Please review the referenced CVE’s for additional information. </p> </description> <impact type="normal"> <p>Remote attackers could cause a Denial of Service condition or have other unspecified impacts. </p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All libpng 1.2 users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.56" </code> <p>All libpng 1.5 users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.26" </code> <p>All libpng 1.6 users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.6.21" </code> </resolution> <references> <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7981">CVE-2015-7981</uri> <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8126">CVE-2015-8126</uri> <uri link="https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8540"> CVE-2015-8540 </uri> </references> <metadata tag="requester" timestamp="2015-12-23T23:42:59Z"> BlueKnight </metadata> <metadata tag="submitter" timestamp="2016-11-15T07:39:40Z">b-man</metadata> </glsa>