svn commit: r527003 - head/security/vuxml

Mon Feb 24 17:21:38 UTC 2020

Author: tijl
Date: Mon Feb 24 17:21:36 2020
New Revision: 527003
URL: https://svnweb.freebsd.org/changeset/ports/527003

Log:
  Document Mbed TLS vulnerabilities 2019-12 and 2020-02.
  
  Security:	https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12
  Security:	https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-02

Modified:
  head/security/vuxml/vuln.xml

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

--- head/security/vuxml/vuln.xml	Mon Feb 24 17:13:34 2020	(r527002)
+++ head/security/vuxml/vuln.xml	Mon Feb 24 17:21:36 2020	(r527003)
@@ -58,6 +58,69 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+  <vuln vid="056ea107-5729-11ea-a2f3-001cc0382b2f">
+    <topic>Mbed TLS -- Cache attack against RSA key import in SGX</topic>
+    <affects>
+      <package>
+	<name>mbedtls</name>
+	<range><lt>2.16.5</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+	<p>Janos Follath reports:</p>
+	<blockquote cite="https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-02">
+	  <p>If Mbed TLS is running in an SGX enclave and the adversary has
+	    control of the main operating system, they can launch a side
+	    channel attack to recover the RSA private key when it is being
+	    imported.</p>
+	  <p>The attack only requires access to fine grained measurements to
+	    cache usage. Therefore the attack might be applicable to a scenario
+	    where Mbed TLS is running in TrustZone secure world and the
+	    attacker controls the normal world or possibly when Mbed TLS is
+	    part of a hypervisor and the adversary has full control of a guest
+	    OS.</p>
+	</blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-02</url>
+    </references>
+    <dates>
+      <discovery>2020-02-18</discovery>
+      <entry>2020-02-24</entry>
+    </dates>
+  </vuln>
+
+  <vuln vid="b70b880f-5727-11ea-a2f3-001cc0382b2f">
+    <topic>Mbed TLS -- Side channel attack on ECDSA</topic>
+    <affects>
+      <package>
+	<name>mbedtls</name>
+	<range><lt>2.16.4</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+	<p>Janos Follath reports:</p>
+	<blockquote cite="https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12">
+	  <p>Our bignum implementation is not constant time/constant trace, so
+	    side channel attacks can retrieve the blinded value, factor it (as
+	    it is smaller than RSA keys and not guaranteed to have only large
+	    prime factors), and then, by brute force, recover the key.</p>
+	</blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12</url>
+      <cvename>CVE-2019-18222</cvename>
+    </references>
+    <dates>
+      <discovery>2019-10-25</discovery>
+      <entry>2020-02-24</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="8e3f1812-54d9-11ea-8d49-d4c9ef517024">
     <topic>WeeChat -- Multiple vulnerabilities</topic>
     <affects>
