diff options
| -rw-r--r-- | lib/curl_ntlm_wb.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/curl_ntlm_wb.c b/lib/curl_ntlm_wb.c index 353a65645..baf579ef7 100644 --- a/lib/curl_ntlm_wb.c +++ b/lib/curl_ntlm_wb.c @@ -5,7 +5,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms @@ -249,6 +249,9 @@ done: return CURLE_REMOTE_ACCESS_DENIED; } +/* if larger than this, something is seriously wrong */ +#define MAX_NTLM_WB_RESPONSE 100000 + static CURLcode ntlm_wb_response(struct connectdata *conn, const char *input, curlntlm state) { @@ -289,6 +292,12 @@ static CURLcode ntlm_wb_response(struct connectdata *conn, buf[len_out - 1] = '\0'; break; } + + if(len_out > MAX_NTLM_WB_RESPONSE) { + failf(conn->data, "too large ntlm_wb response!"); + return CURLE_OUT_OF_MEMORY; + } + newbuf = Curl_saferealloc(buf, len_out + NTLM_BUFSIZE); if(!newbuf) return CURLE_OUT_OF_MEMORY; |