curl: fix CVE-2017-1000099, 1000100, 1000101

Backport upstream commits to fix:
- CVE-2017-1000099
  https://curl.haxx.se/docs/adv_20170809C.html
  https://curl.haxx.se/CVE-2017-1000099.patch

- CVE-2017-1000100
  https://curl.haxx.se/docs/adv_20170809B.html
  https://curl.haxx.se/CVE-2017-1000100.patch

- CVE-2017-1000101
  https://curl.haxx.se/docs/adv_20170809A.html
  https://curl.haxx.se/CVE-2017-1000101.patch

(From OE-Core rev: 2eb590bbeab4dbf2583a78fcbaf3723757116123)

Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/meta/recipes-support/curl/curl/CVE-2017-1000100.patch b/meta/recipes-support/curl/curl/CVE-2017-1000100.patch
new file mode 100644
index 0000000000..f74f1dd896
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2017-1000100.patch
@@ -0,0 +1,51 @@
+From 358b2b131ad6c095696f20dcfa62b8305263f898 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Tue, 1 Aug 2017 17:16:46 +0200
+Subject: [PATCH] tftp: reject file name lengths that don't fit
+
+... and thereby avoid telling send() to send off more bytes than the
+size of the buffer!
+
+CVE: CVE-2017-1000100
+
+Bug: https://curl.haxx.se/docs/adv_20170809B.html
+Reported-by: Even Rouault
+
+Credit to OSS-Fuzz for the discovery
+
+Upstream-Status: Backport
+https://github.com/curl/curl/commit/358b2b131ad6c095696f20dcfa62b8305263f898
+
+Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
+---
+ lib/tftp.c |    7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/lib/tftp.c b/lib/tftp.c
+index 02bd842..f6f4bce 100644
+--- a/lib/tftp.c
++++ b/lib/tftp.c
+@@ -5,7 +5,7 @@
+  *                            | (__| |_| |  _ <| |___
+  *                             \___|\___/|_| \_\_____|
+  *
+- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
++ * Copyright (C) 1998 - 2017, 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
+@@ -491,6 +491,11 @@ static CURLcode tftp_send_first(tftp_state_data_t *state, tftp_event_t event)
+     if(result)
+       return result;
+ 
++    if(strlen(filename) > (state->blksize - strlen(mode) - 4)) {
++      failf(data, "TFTP file name too long\n");
++      return CURLE_TFTP_ILLEGAL; /* too long file name field */
++    }
++
+     snprintf((char *)state->spacket.data+2,
+              state->blksize,
+              "%s%c%s%c", filename, '\0',  mode, '\0');
+-- 
+1.7.9.5
+