<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200603-18"> <title>Pngcrush: Buffer overflow</title> <synopsis> Pngcrush is vulnerable to a buffer overflow which could potentially lead to the execution of arbitrary code. </synopsis> <product type="ebuild">pngcrush</product> <announced>2006-03-21</announced> <revised count="01">2006-03-21</revised> <bug>123286</bug> <access>remote</access> <affected> <package name="media-gfx/pngcrush" auto="yes" arch="*"> <unaffected range="ge">1.6.2</unaffected> <vulnerable range="lt">1.6.2</vulnerable> </package> </affected> <background> <p> Pngcrush is an optimizer for PNG files. </p> </background> <description> <p> Carsten Lohrke of Gentoo Linux reported that Pngcrush contains a vulnerable version of zlib (GLSA 200507-19). </p> </description> <impact type="normal"> <p> By creating a specially crafted data stream, attackers can overwrite data structures for applications that use Pngcrush, resulting in a Denial of Service and potentially arbitrary code execution. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All Pngcrush users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/pngcrush-1.6.2"</code> </resolution> <references> <uri link="https://www.gentoo.org/security/en/glsa/glsa-200507-19.xml">GLSA 200507-19</uri> <uri link="https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1849">CVE-2005-1849</uri> </references> <metadata tag="requester" timestamp="2006-02-22T18:06:23Z"> koon </metadata> <metadata tag="bugReady" timestamp="2006-03-03T17:03:15Z"> koon </metadata> <metadata tag="submitter" timestamp="2006-03-18T02:00:13Z"> adir </metadata> </glsa>