commit 950a6d4b30f0e53db381d09bf73fbfe59175e4e5
author Nikos Mavrogiannopoulos <nmav@gnutls.org> Sat Jan 11 13:07:39 2020 +0100
committer Nikos Mavrogiannopoulos <nmav@gnutls.org> Sat Jan 11 13:07:42 2020 +0100
tree c577429ff52c11eb1537a5703dfe03c603c96b74
parent 5a94373eab274cc39ba49163d548d58aeffe7adf

_asn1_decode_simple_ber: allow empty fields

Allow empty subcomponents of BER OCTET STRINGS. These
are not prohibited by BER.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>

lib/decoding.c

diff --git a/lib/decoding.c b/lib/decoding.c
index 6cc6a3f..85f6b2a 100644
--- a/lib/decoding.c
+++ b/lib/decoding.c
@@ -2338,13 +2338,6 @@
           goto cleanup;
         }
 
-      if (out_len == 0)
-        {
-          warn();
-          result = ASN1_DER_ERROR;
-          goto cleanup;
-        }
-
       result = append(&total, &total_size, cout, out_len);
       if (result != ASN1_SUCCESS)
         {