http://bugs.gentoo.org/show_bug.cgi?id=118875

--- server/util.c	(revision 330526)
+++ server/util.c	(working copy)
@@ -1762,6 +1762,8 @@
             j += 3;
         else if (s[i] == '&')
             j += 4;
+        else if (s[i] == '"')
+            j += 5;
 
     if (j == 0)
         return apr_pstrmemdup(p, s, i);
@@ -1780,6 +1782,10 @@
             memcpy(&x[j], "&", 5);
             j += 4;
         }
+        else if (s[i] == '"') {
+            memcpy(&x[j], """, 6);
+            j += 5;
+        }
         else
             x[j] = s[i];
 
--- modules/mappers/mod_imap.c	(revision 330526)
+++ modules/mappers/mod_imap.c	(working copy)
@@ -342,7 +342,7 @@
     if (!strcasecmp(value, "referer")) {
         referer = apr_table_get(r->headers_in, "Referer");
         if (referer && *referer) {
-	    return apr_pstrdup(r->pool, referer);
+	    return ap_escape_html(r->pool, referer);
         }
         else {
 	    /* XXX:  This used to do *value = '\0'; ... which is totally bogus