File mutt-1.5.20-bnc537141.dif of Package mutt.4421

--- mutt_ssl.c
+++ mutt_ssl.c	2009-11-25 12:48:35.000000000 +0000
@@ -681,7 +681,8 @@ static int check_host (X509 *x509cert, c
       subj_alt_name = sk_GENERAL_NAME_value(subj_alt_names, i);
       if (subj_alt_name->type == GEN_DNS)
       {
-	if ((match_found = hostname_match(hostname_ascii,
+	if (mutt_strlen(subj_alt_name->d.ia5->data) == subj_alt_name->d.ia5->length &&
+	    (match_found = hostname_match(hostname_ascii,
 					  (char *)(subj_alt_name->d.ia5->data))))
 	{
 	  break;
@@ -711,7 +712,9 @@ static int check_host (X509 *x509cert, c
 	strfcpy (err, _("cannot get certificate common name"), errlen);
       goto out;
     }
-    match_found = hostname_match(hostname_ascii, buf);
+    if (mutt_strlen(buf) == bufsize - 1) {
+      match_found = hostname_match(hostname_ascii, buf);
+    }
   }
 
   if (!match_found)
@@ -745,6 +748,7 @@ static int ssl_cache_trusted_cert (X509
 static int ssl_check_preauth (X509 *cert, const char* host)
 {
   char buf[SHORT_STRING];
+  int trusted = 0;
 
   /* check session cache first */
   if (check_certificate_cache (cert))
@@ -753,6 +757,13 @@ static int ssl_check_preauth (X509 *cert
     return 1;
   }
 
+  /* automatic check from user's database */
+  if (SslCertFile && check_certificate_by_digest (cert))
+  {
+    dprint (2, (debugfile, "ssl_check_preauth: digest check passed\n"));
+    trusted++;
+  }
+
   buf[0] = 0;
   if (host && option (OPTSSLVERIFYHOST) != M_NO)
   {
@@ -760,24 +771,20 @@ static int ssl_check_preauth (X509 *cert
     {
       mutt_error (_("Certificate host check failed: %s"), buf);
       mutt_sleep (2);
-      return -1;
+      if (!trusted)	/* don't fail if cert is manually trusted */
+	return -1;
     }
     dprint (2, (debugfile, "ssl_check_preauth: hostname check passed\n"));
   }
 
+  if (trusted) return 1;
+
   if (check_certificate_by_signer (cert))
   {
     dprint (2, (debugfile, "ssl_check_preauth: signer check passed\n"));
     return 1;
   }
 
-  /* automatic check from user's database */
-  if (SslCertFile && check_certificate_by_digest (cert))
-  {
-    dprint (2, (debugfile, "ssl_check_preauth: digest check passed\n"));
-    return 1;
-  }
-
   return 0;
 }