Add TROVE-2019-001 to changelog for 0.3.5.8

ChangeLog

@@ -3,6 +3,19 @@ Changes in version 0.3.5.8 - 2019-02-21
   for an annoying SOCKS-parsing bug that affected users in earlier 0.3.5.x
   releases.
 
+  It also includes a fix for a medium-severity security bug affecting Tor
+  0.3.2.1-alpha and later. All Tor instances running an affected release
+  should upgrade to 0.3.3.12, 0.3.4.11, 0.3.5.8, or 0.4.0.2-alpha.
+
+  o Major bugfixes (cell scheduler, KIST, security):
+    - Make KIST consider the outbuf length when computing what it can
+      put in the outbuf. Previously, KIST acted as though the outbuf
+      were empty, which could lead to the outbuf becoming too full. It
+      is possible that an attacker could exploit this bug to cause a Tor
+      client or relay to run out of memory and crash. Fixes bug 29168;
+      bugfix on 0.3.2.1-alpha. This issue is also being tracked as
+      TROVE-2019-001 and CVE-2019-8955.
+
   o Major bugfixes (networking, backport from 0.4.0.2-alpha):
     - Gracefully handle empty username/password fields in SOCKS5
       username/password auth messsage and allow SOCKS5 handshake to

changes/ticket29168

@@ -1,5 +0,0 @@
-  o Major bugfixes (cell scheduler, KIST):
-    - Make KIST to always take into account the outbuf length when computing
-      what we can actually put in the outbuf. This could lead to the outbuf
-      being filled up and thus a possible memory DoS vector. TROVE-2019-001.
-      Fixes bug 29168; bugfix on 0.3.2.1-alpha.