svn commit: r451877 - head/security/vuxml

Thu Oct 12 13:52:29 UTC 2017

Author: swills
Date: Thu Oct 12 13:52:27 2017
New Revision: 451877
URL: https://svnweb.freebsd.org/changeset/ports/451877

Log:
  Document nss issue
  
  PR:		222952
  Submitted by:	Vladimir Krstulja <vlad-fbsd at acheronmedia.com>

Modified:
  head/security/vuxml/vuln.xml

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

--- head/security/vuxml/vuln.xml	Thu Oct 12 13:20:23 2017	(r451876)
+++ head/security/vuxml/vuln.xml	Thu Oct 12 13:52:27 2017	(r451877)
@@ -58,6 +58,44 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+  <vuln vid="e71fd9d3-af47-11e7-a633-009c02a2ab30">
+    <topic>nss -- Use-after-free in TLS 1.2 generating handshake hashes</topic>
+    <affects>
+      <package>
+	<name>nss</name>
+	<name>linux-c6-nss</name>
+	<name>linux-c7-nss</name>
+	<range><ge>3.32</ge><lt>3.32.1</lt></range>
+	<range><ge>3.28</ge><lt>3.28.6</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+	<p>Mozilla reports:</p>
+	<blockquote cite="https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/#CVE-2017-7805">
+	  <p>During TLS 1.2 exchanges, handshake hashes are generated which
+	     point to a message buffer. This saved data is used for later
+	     messages but in some cases, the handshake transcript can
+	     exceed the space available in the current buffer, causing the
+	     allocation of a new buffer. This leaves a pointer pointing to
+	     the old, freed buffer, resulting in a use-after-free when
+	     handshake hashes are then calculated afterwards. This can
+	     result in a potentially exploitable crash.</p>
+	</blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/#CVE-2017-7805</url>
+      <url>https://hg.mozilla.org/projects/nss/rev/2d7b65b72290</url>
+      <url>https://hg.mozilla.org/projects/nss/rev/d3865e2957d0</url>
+      <cvename>CVE-2017-7805</cvename>
+    </references>
+    <dates>
+      <discovery>2017-08-04</discovery>
+      <entry>2017-10-12</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="15a62f22-098a-443b-94e2-2d26c375b993">
     <topic>osip -- Improper Restriction of Operations within the Bounds of a Memory Buffer</topic>
     <affects>
