| <?xml version="1.0" encoding="utf-8"?> |
| <?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> |
| <?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200611-09"> |
| <title>libpng: Denial of Service</title> |
| <synopsis> |
| A vulnerability in libpng may allow a remote attacker to crash applications |
| that handle untrusted images. |
| </synopsis> |
| <product type="ebuild">libpng</product> |
| <announced>November 17, 2006</announced> |
| <revised>November 17, 2006: 01</revised> |
| <bug>154380</bug> |
| <access>remote</access> |
| <affected> |
| <package name="media-libs/libpng" auto="yes" arch="*"> |
| <unaffected range="ge">1.2.13</unaffected> |
| <vulnerable range="lt">1.2.13</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| libpng is a free ANSI C library used to process and manipulate PNG |
| images. |
| </p> |
| </background> |
| <description> |
| <p> |
| Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that a |
| vulnerability exists in the sPLT chunk handling code of libpng, a large |
| sPLT chunk may cause an application to attempt to read out of bounds. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| A remote attacker could craft an image that when processed or viewed by |
| an application using libpng causes the application to terminate |
| abnormally. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All libpng users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.13"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5793">CVE-2006-5793</uri> |
| </references> |
| <metadata tag="submitter" timestamp="Fri, 10 Nov 2006 11:17:04 +0000"> |
| taviso |
| </metadata> |
| <metadata tag="bugReady" timestamp="Thu, 16 Nov 2006 15:07:26 +0000"> |
| vorlon |
| </metadata> |
| </glsa> |