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diff --git a/metadata/glsa/glsa-201701-74.xml b/metadata/glsa/glsa-201701-74.xml new file mode 100644 index 000000000000..1e78425acae3 --- /dev/null +++ b/metadata/glsa/glsa-201701-74.xml @@ -0,0 +1,72 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="201701-74"> + <title>libpng: Remote execution of arbitrary code</title> + <synopsis>A null pointer dereference in libpng might allow remote attackers + to execute arbitrary code. + </synopsis> + <product type="ebuild">libpng</product> + <announced>2017-01-29</announced> + <revised count="1">2017-01-29</revised> + <bug>604082</bug> + <access>remote</access> + <affected> + <package name="media-libs/libpng" auto="yes" arch="*"> + <unaffected range="ge">1.6.27</unaffected> + <unaffected range="ge" slot="1.5">1.5.28</unaffected> + <unaffected range="ge" slot="1.2">1.2.57</unaffected> + <vulnerable range="lt">1.6.27</vulnerable> + </package> + </affected> + <background> + <p>libpng is a standard library used to process PNG (Portable Network + Graphics) images. It is used by several programs, including web browsers + and potentially server processes. + </p> + </background> + <description> + <p>A null pointer dereference was discovered in libpng in the + png_push_save_buffer function. In order to be vulnerable, an application + has to load a text chunk into the PNG structure, then delete all text, + then add another text chunk to the same PNG structure, which seems to be + an unlikely sequence, but it is possible. + </p> + </description> + <impact type="normal"> + <p>A remote attacker, by enticing a user to process a specially crafted PNG + file, could execute arbitrary code with the privileges of the process. + </p> + </impact> + <workaround> + <p>There is no known workaround at this time.</p> + </workaround> + <resolution> + <p>All libpng 1.6.x users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.6.27" + </code> + + <p>All libpng 1.5.x users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.28:1.5" + </code> + + <p>All libpng 1.2.x users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.57:1.2" + </code> + </resolution> + <references> + <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10087"> + CVE-2016-10087 + </uri> + </references> + <metadata tag="requester" timestamp="2017-01-18T08:20:53Z">b-man</metadata> + <metadata tag="submitter" timestamp="2017-01-29T17:07:28Z">b-man</metadata> +</glsa> |