svn commit: r455673 - head/security/vuxml

Wed Dec 6 18:38:05 UTC 2017

Author: feld
Date: Wed Dec  6 18:38:04 2017
New Revision: 455673
URL: https://svnweb.freebsd.org/changeset/ports/455673

Log:
  Document FreeBSD-SA-17:11.openssl

Modified:
  head/security/vuxml/vuln.xml

Modified: head/security/vuxml/vuln.xml
==============================================================================

--- head/security/vuxml/vuln.xml	Wed Dec  6 18:30:42 2017	(r455672)
+++ head/security/vuxml/vuln.xml	Wed Dec  6 18:38:04 2017	(r455673)
@@ -58,6 +58,59 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+  <vuln vid="9442a811-dab3-11e7-b5af-a4badb2f4699">
+    <topic>FreeBSD -- OpenSSL multiple vulnerabilities</topic>
+    <affects>
+      <package>
+	<name>FreeBSD</name>
+	<range><ge>11.1</ge><lt>11.1_5</lt></range>
+	<range><ge>11.0</ge><lt>11.0_16</lt></range>
+	<range><ge>10.4</ge><lt>10.4_4</lt></range>
+	<range><ge>10.3</ge><lt>10.3_25</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+	<h1>Problem Description:</h1>
+	<p>If an X.509 certificate has a malformed IPAddressFamily
+	extension, OpenSSL could do a one-byte buffer overread.
+	[CVE-2017-3735]</p>
+	<p>There is a carry propagating bug in the x86_64 Montgomery
+	squaring procedure. This only affects processors that support
+	the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th
+	generation) and later or AMD Ryzen. [CVE-2017-3736] This
+	bug only affects FreeBSD 11.x.</p>
+	<h1>Impact:</h1>
+	<p>Application using OpenSSL may display erroneous certificate
+	in text format. [CVE-2017-3735]</p>
+	<p>Mishandling of carry propagation will produce incorrect
+	output, and make it easier for a remote attacker to obtain
+	sensitive private-key information. No EC algorithms are
+	affected, analysis suggests that attacks against RSA and
+	DSA as a result of this defect would be very difficult to
+	perform and are not believed likely.</p>
+	<p>Attacks against DH are considered just feasible (although
+	very difficult) because most of the work necessary to deduce
+	information about a private key may be performed offline.
+	The amount of resources required for such an attack would
+	be very significant and likely only accessible to a limited
+	number of attackers. An attacker would additionally need
+	online access to an unpatched system using the target private
+	key in a scenario with persistent DH parameters and a private
+	key that is shared between multiple clients. [CVE-2017-3736]</p>
+      </body>
+    </description>
+    <references>
+      <cvename>CVE-2017-3735</cvename>
+      <cvename>CVE-2017-3736</cvename>
+      <freebsdsa>SA-17:11.openssl</freebsdsa>
+    </references>
+    <dates>
+      <discovery>2017-11-29</discovery>
+      <entry>2017-12-06</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="759059ac-dab3-11e7-b5af-a4badb2f4699">
     <topic>FreeBSD -- Information leak in kldstat(2)</topic>
     <affects>
