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From a6fcd8a32f3b1c5d80e524f8b2c1de32e6ecdb2b Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 31 May 2020 23:09:59 +0200
Subject: [PATCH] tool_getparam: -i is not OK if -J is used

Reported-by: sn on hackerone
Bug: https://curl.haxx.se/docs/CVE-2020-8177.html

Upstream-commit: 8236aba58542c5f89f1d41ca09d84579efb05e22
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
 src/tool_cb_hdr.c   | 13 ++++---------
 src/tool_getparam.c |  5 +++++
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/tool_cb_hdr.c b/src/tool_cb_hdr.c
index 3b10238..b80707f 100644
--- a/src/tool_cb_hdr.c
+++ b/src/tool_cb_hdr.c
@@ -132,16 +132,11 @@ size_t tool_header_cb(char *ptr, size_t size, size_t nmemb, void *userdata)
       filename = parse_filename(p, len);
       if(filename) {
         if(outs->stream) {
-          /* already opened and possibly written to */
-          if(outs->fopened)
-            fclose(outs->stream);
-          outs->stream = NULL;
-
-          /* rename the initial file name to the new file name */
-          rename(outs->filename, filename);
-          if(outs->alloc_filename)
-            free(outs->filename);
+          /* indication of problem, get out! */
+          free(filename);
+          return failure;
         }
+
         outs->is_cd_filename = TRUE;
         outs->s_isreg = TRUE;
         outs->fopened = FALSE;
diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index 764caa2..c5c7429 100644
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -1745,6 +1745,11 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
       }
       break;
     case 'i':
+      if(config->content_disposition) {
+        warnf(global,
+              "--include and --remote-header-name cannot be combined.\n");
+        return PARAM_BAD_USE;
+      }
       config->show_headers = toggle; /* show the headers as well in the
                                         general output stream */
       break;
-- 
2.21.3