diff options
Diffstat (limited to 'epan/dissectors/packet-isakmp.c')
| -rw-r--r-- | epan/dissectors/packet-isakmp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/epan/dissectors/packet-isakmp.c b/epan/dissectors/packet-isakmp.c index 91e0f4b169..0750a4210c 100644 --- a/epan/dissectors/packet-isakmp.c +++ b/epan/dissectors/packet-isakmp.c @@ -5323,7 +5323,9 @@ dissect_enc(tvbuff_t *tvb, encr_iv = (guchar *)wmem_alloc0(wmem_packet_scope(), encr_iv_len); memcpy( encr_iv + encr_iv_offset, key_info->encr_key + encr_key_len, key_info->encr_spec->salt_len ); - memcpy( encr_iv + encr_iv_offset + key_info->encr_spec->salt_len, iv, iv_len ); + if(iv) { + memcpy( encr_iv + encr_iv_offset + key_info->encr_spec->salt_len, iv, iv_len ); + } if (key_info->encr_spec->gcry_mode == GCRY_CIPHER_MODE_CTR) { encr_iv[encr_iv_len-1] = 1; /* fallback for gcrypt not having AEAD ciphers */ |