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Don't try to reconnect SSLv2 over DTLS (UDP). Fixes #1543

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dmiller
2019-04-08 22:29:47 +00:00
parent d014a474dc
commit 7b523f0643
2 changed files with 5 additions and 1 deletions
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3
CHANGELOG
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@@ -1,5 +1,8 @@
#Nmap Changelog ($Id$); -*-text-*-
o [Nsock][GH#1543] Avoid a crash (Protocol not supported) caused by trying to
reconnect with SSLv2 when an error occurs during DTLS connect. [Daniel Miller]
o [NSE][GH#1016][GH#1082] New script http-hp-ilo-info to extract information
from HP Integrated Lights-Out (iLO) servers. [rajeevrmenon97]

3
nsock/src/nsock_core.c
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@@ -459,7 +459,8 @@ void handle_connect_result(struct npool *ms, struct nevent *nse, enum nse_status
nse->sslinfo.ssl_desire = sslerr;
socket_count_write_inc(iod);
update_events(iod, ms, nse, EV_WRITE, EV_NONE);
} else if (!(options & SSL_OP_NO_SSLv2)) {
} else if (iod->lastproto != IPPROTO_UDP && !(options & SSL_OP_NO_SSLv2)) {
/* SSLv2 does not apply to DTLS, so ensure lastproto was not UDP. */
int saved_ev;
/* SSLv3-only and TLSv1-only servers can't be connected to when the