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Date:      Mon, 2 Mar 2020 18:32:07 +0000 (UTC)
From:      Koop Mast <kwm@FreeBSD.org>
To:        ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org
Subject:   svn commit: r527647 - head/security/vuxml
Message-ID:  <202003021832.022IW7mI097265@repo.freebsd.org>

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Author: kwm
Date: Mon Mar  2 18:32:07 2020
New Revision: 527647
URL: https://svnweb.freebsd.org/changeset/ports/527647

Log:
  Document librsvg2 vulnabilities.
  
  Security:	CVE-2019-20446

Modified:
  head/security/vuxml/vuln.xml

Modified: head/security/vuxml/vuln.xml
==============================================================================
--- head/security/vuxml/vuln.xml	Mon Mar  2 17:35:42 2020	(r527646)
+++ head/security/vuxml/vuln.xml	Mon Mar  2 18:32:07 2020	(r527647)
@@ -58,6 +58,45 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">;
+  <vuln vid="b66583ae-5aee-4cd5-bb31-b2d397f8b6b3">
+    <topic>librsvg2 -- multiple vulnabilities</topic>
+    <affects>
+      <package>
+	<name>librsvg2</name>
+	<range><lt>2.40.21</lt></range>
+      </package>
+      <package>
+	<name>librsvg2-rust</name>
+	<range><ge>2.41.0</ge><lt>2.46.3</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">;
+	<p>Librsvg2 developers reports:</p>
+	<blockquote cite="https://mail.gnome.org/archives/ftp-release-list/2020-February/msg00133.htmlE">;
+	  <p>Backport the following fixes from 2.46.x:</p>
+	  <p>Librsvg now has limits on the number of loaded XML elements,
+	    and the number of referenced elements within an SVG document.  This
+	    is to mitigate malicious SVGs which try to consume all memory, and
+	    those which try to consume an exponential amount of CPU time.</p>
+	  <p>Fix stack exhaustion with circular references in &lt;use&gt; elements.</p>
+	  <p>Fix a denial-of-service condition from exponential explosion
+	    of rendered elements, through nested use of SVG &lt;use&gt; elements in
+	    malicious SVGs.  This is similar to the XML "billion laughs attack"
+	    but for SVG instancing.</p>
+	</blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://mail.gnome.org/archives/ftp-release-list/2020-February/msg00133.html</url>;
+      <cvename>CVE-2019-20446</cvename>
+    </references>
+    <dates>
+      <discovery>2020-02-26</discovery>
+      <entry>2020-03-02</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="d37407bd-5c5f-11ea-bb2a-8c164582fbac">
     <topic>TiMidity++ -- Multiple vulnerabilities</topic>
     <affects>



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