[SCM] GNU libtasn1 branch, master, updated. libtasn1_3_6-15-gecd1884

[Nikos Mavrogiannopoulos]

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- Log -----------------------------------------------------------------
commit ecd1884be1d2e0f0063f82b0dd47ebe0231c3eb4
Author: Nikos Mavrogiannopoulos <address@hidden>
Date:   Tue Jun 3 16:35:45 2014 +0200

    more efficient check for '?LAST' and error checking.

commit 4f3b6264b2020dd831aec073369238749167149e
Author: Nikos Mavrogiannopoulos <address@hidden>
Date:   Mon Jun 2 10:49:55 2014 +0200

    Add a sanity check in asn1_der_decoding_startEnd()

-----------------------------------------------------------------------

Summary of changes:
 lib/decoding.c   |    3 +++
 lib/parser_aux.c |   10 +++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/lib/decoding.c b/lib/decoding.c
index 8f6fe8a..54f0167 100644
--- a/lib/decoding.c
+++ b/lib/decoding.c
@@ -1581,6 +1581,9 @@ asn1_der_decoding_startEnd (asn1_node element, const void 
*ider, int ider_len,
       *end = node_to_find->end;
     }
 
+  if (*end < *start)
+    return ASN1_GENERIC_ERROR;
+
   return ASN1_SUCCESS;
 }
 
diff --git a/lib/parser_aux.c b/lib/parser_aux.c
index effedb2..39e4046 100644
--- a/lib/parser_aux.c
+++ b/lib/parser_aux.c
@@ -170,13 +170,13 @@ asn1_find_node (asn1_node pointer, const char *name)
        return NULL;
 
       p = p->down;
+      if (p == NULL)
+        return NULL;
 
       /* The identifier "?LAST" indicates the last element
          in the right chain. */
-      if (!strcmp (n, "?LAST"))
+      if (n[0] == '?' && n[1] == 'L') /* ?LAST */
        {
-         if (p == NULL)
-           return NULL;
          while (p->right)
            p = p->right;
        }
@@ -189,9 +189,9 @@ asn1_find_node (asn1_node pointer, const char *name)
              else
                p = p->right;
            }
-         if (p == NULL)
-           return NULL;
        }
+      if (p == NULL)
+        return NULL;
     }                          /* while */
 
   return p;


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