diff options
| author |   jsing <jsing@openbsd.org> | 2020-05-11 18:03:51 +0000 |
|---|---|---|
| committer | jsing <jsing@openbsd.org> | 2020-05-11 18:03:51 +0000 |
| commit | 204f36c2801813e90c79fe8b14e633e73b4bb770 (patch) | |
| tree | 93d42a200e665575a33d8b8bb0ad541663e5ddbd /lib/libssl/tls13_record.c | |
| parent | More accurate remaining power reporting with disparate batteries (diff) | |
| download | wireguard-openbsd-204f36c2801813e90c79fe8b14e633e73b4bb770.tar.xz wireguard-openbsd-204f36c2801813e90c79fe8b14e633e73b4bb770.zip | |
Add record version checks.
When legacy version is below TLSv1.2 ensure that the record version is
SSL3/TLS, however when the legacy version is set to TLSv1.2 require this
specifically.
ok beck@ tb@
Diffstat (limited to 'lib/libssl/tls13_record.c')
| -rw-r--r-- | lib/libssl/tls13_record.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libssl/tls13_record.c b/lib/libssl/tls13_record.c index 9ab4cdba36e..ca61a94ff1e 100644 --- a/lib/libssl/tls13_record.c +++ b/lib/libssl/tls13_record.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tls13_record.c,v 1.4 2020/02/15 14:36:58 jsing Exp $ */ +/* $OpenBSD: tls13_record.c,v 1.5 2020/05/11 18:03:51 jsing Exp $ */ /* * Copyright (c) 2018, 2019 Joel Sing <jsing@openbsd.org> * @@ -146,6 +146,8 @@ tls13_record_recv(struct tls13_record *rec, tls13_read_cb wire_read, return TLS13_IO_FAILURE; /* XXX - record overflow alert. */ + if ((rec_version >> 8) != SSL3_VERSION_MAJOR) + return TLS13_IO_RECORD_VERSION; if (rec_len > TLS13_RECORD_MAX_CIPHERTEXT_LEN) return TLS13_IO_FAILURE; |