svn commit: r499245 - head/security/vuxml

Thu Apr 18 10:36:51 UTC 2019

Author: swills
Date: Thu Apr 18 10:36:50 2019
New Revision: 499245
URL: https://svnweb.freebsd.org/changeset/ports/499245

Log:
  Document libssh2 issue

Modified:
  head/security/vuxml/vuln.xml

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

--- head/security/vuxml/vuln.xml	Thu Apr 18 09:31:22 2019	(r499244)
+++ head/security/vuxml/vuln.xml	Thu Apr 18 10:36:50 2019	(r499245)
@@ -58,6 +58,48 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+  <vuln vid="6e58e1e9-2636-413e-9f84-4c0e21143628">
+    <topic>libssh2 -- multiple issues</topic>
+    <affects>
+      <package>
+	<name>libssh2</name>
+	<range><lt>1.8.1</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+	<p>libssh2 developers report:</p>
+	<blockquote cite="https://github.com/libssh2/libssh2/releases/tag/libssh2-1.8.1">
+	  <ul>
+	    <li>Defend against possible integer overflows in comp_method_zlib_decomp.</li>
+	    <li>Defend against writing beyond the end of the payload in _libssh2_transport_read().</li>
+	    <li>Sanitize padding_length - _libssh2_transport_read().</li>
+	    <li>This prevents an underflow resulting in a potential out-of-bounds read if a server sends a too-large padding_length, possibly with malicious intent.</li>
+	    <li>Prevent zero-byte allocation in sftp_packet_read() which could lead to an out-of-bounds read.</li>
+	    <li>Check the length of data passed to sftp_packet_add() to prevent out-of-bounds reads.</li>
+	    <li>Add a required_size parameter to sftp_packet_require et. al. to require callers of these functions to handle packets that are too short.</li>
+	    <li>Additional length checks to prevent out-of-bounds reads and writes in _libssh2_packet_add().</li>
+	  </ul>
+	</blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://github.com/libssh2/libssh2/releases/tag/libssh2-1.8.1</url>
+      <url>https://libssh2.org/CVE-2019-3858.html</url>
+      <url>https://libssh2.org/CVE-2019-3860.html</url>
+      <url>https://libssh2.org/CVE-2019-3861.html</url>
+      <url>https://libssh2.org/CVE-2019-3862.html</url>
+      <cvename>CVE-2019-3858</cvename>
+      <cvename>CVE-2019-3860</cvename>
+      <cvename>CVE-2019-3861</cvename>
+      <cvename>CVE-2019-3862</cvename>
+    </references>
+    <dates>
+      <discovery>2019-03-14</discovery>
+      <entry>2019-04-18</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="b747783f-5fb6-11e9-b2ac-08002705f877">
     <topic>gitea -- remote code execution</topic>
     <affects>
