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Prevent a null pointer dereference in nse_nsock_get_ssl.

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This could be provoked by a script calling nmap.get_ssl_certificate on
an unconnected socket.
This commit is contained in:
david 2012-05-28 17:44:10 +00:00
parent fc49819007
commit 091d848838
1 changed files with 1 additions and 1 deletions
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2
nse_nsock.cc
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@ -709,7 +709,7 @@ SSL *nse_nsock_get_ssl (lua_State *L)
{
nse_nsock_udata *nu = check_nsock_udata(L, 1, 0);
if (!nsi_checkssl(nu->nsiod))
if (nu->nsiod == NULL || !nsi_checkssl(nu->nsiod))
luaL_argerror(L, 1, "not a SSL socket");
return (SSL *) nsi_getssl(nu->nsiod);