Previously, a truncated DTLS fragment in
|dtls1_process_out_of_seq_message| would cause *ok to be cleared, but
the return value would still be the number of bytes read. This would
cause |dtls1_get_message| not to consider it an error and it would
continue processing as normal until the calling function noticed that
*ok was zero.
I can't see an exploit here because |dtls1_get_message| uses
|s->init_num| as the length, which will always be zero from what I can
see.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's aad61c0a57a3b6371496034db61675abcdb81811.)
Change-Id: I2fb0ea93b6e812e19723ada3351f842cc7b2fa91
Reviewed-on: https://boringssl-review.googlesource.com/1436
Reviewed-by: Adam Langley <agl@google.com>
8506609ca3