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| author | Nikos Mavrogiannopoulos <nmav@redhat.com> | 2018-10-17 14:53:47 +0200 |
|---|---|---|
| committer | Nikos Mavrogiannopoulos <nmav@redhat.com> | 2018-10-30 13:06:52 +0100 |
| commit | a18258dc7b29f95cd54fa05d16e11e004774c26e (patch) | |
| tree | 7ce711115ffbf3116edb3f84bfe8ddff3e4162a4 /lib/priority.c | |
| parent | fd3be4ac1dcc9493eece19db7e3a6f58c1f62776 (diff) | |
| download | gnutls-a18258dc7b29f95cd54fa05d16e11e004774c26e.tar.gz | |
gnutls_priority_set: do not override the version after handshake is complete
When an application would re-set priorities prior to a rehandshake
we would override the negotiated version with the highest supported,
something which may lead to issues. This disables that unnecessary
version override. See:
https://bugzilla.redhat.com/show_bug.cgi?id=1634736
Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
Diffstat (limited to 'lib/priority.c')
| -rw-r--r-- | lib/priority.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/priority.c b/lib/priority.c index 17049d5327..16d86d64e4 100644 --- a/lib/priority.c +++ b/lib/priority.c @@ -591,11 +591,13 @@ gnutls_priority_set(gnutls_session_t session, gnutls_priority_t priority) session->internals.priorities = priority; gnutls_atomic_increment(&priority->usage_cnt); - /* set the current version to the first in the chain. - * This will be overridden later. - */ + /* set the current version to the first in the chain, if this is + * the call before the initial handshake. During a re-handshake + * we do not set the version to avoid overriding the currently + * negotiated version. */ if (session->internals.priorities->protocol.num_priorities > 0 && - !session->internals.handshake_in_progress) { + !session->internals.handshake_in_progress && + !session->internals.initial_negotiation_completed) { if (_gnutls_set_current_version(session, session->internals.priorities-> protocol.priorities[0]) < 0) { |