diff options
Diffstat (limited to 'ssl/d1_both.c')
| -rw-r--r-- | ssl/d1_both.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/ssl/d1_both.c b/ssl/d1_both.c index b58fdc2f1d..99a031c0af 100644 --- a/ssl/d1_both.c +++ b/ssl/d1_both.c @@ -324,12 +324,18 @@ int dtls1_do_write(SSL *s, int type) len = s->init_num; } + if ( len < DTLS1_HM_HEADER_LENGTH ) + { + /* + * len is so small that we really can't do anything sensible + * so fail + */ + return -1; + } dtls1_fix_message_header(s, frag_off, len - DTLS1_HM_HEADER_LENGTH); dtls1_write_message_header(s, (unsigned char *)&s->init_buf->data[s->init_off]); - - OPENSSL_assert(len >= DTLS1_HM_HEADER_LENGTH); } ret=dtls1_write_bytes(s,type,&s->init_buf->data[s->init_off], |