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