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curl/SOURCES/0021-curl-7.61.1-CVE-2020-8...

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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