curl: fix some security problems

This fixes the following security problems:
* CVE-2017-1000254: FTP PWD response parser out of bounds read
* CVE-2017-1000257: IMAP FETCH response out of bounds read
* CVE-2018-1000005: HTTP/2 trailer out-of-bounds read
* CVE-2018-1000007: HTTP authentication leak in redirects
* CVE-2018-1000120: FTP path trickery leads to NIL byte out of bounds write
* CVE-2018-1000121: LDAP NULL pointer dereference
* CVE-2018-1000122: RTSP RTP buffer over-read
* CVE-2018-1000301: RTSP bad headers buffer over-read

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 39 insertions, 0 deletions

diff --git a/package/network/utils/curl/patches/114-CVE-2018-1000301.patch b/package/network/utils/curl/patches/114-CVE-2018-1000301.patch
new file mode 100644
index 0000000000..993c985060
--- /dev/null
+++ b/package/network/utils/curl/patches/114-CVE-2018-1000301.patch
@@ -0,0 +1,39 @@
+From 8c7b3737d29ed5c0575bf592063de8a51450812d Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Sat, 24 Mar 2018 23:47:41 +0100
+Subject: [PATCH] http: restore buffer pointer when bad response-line is parsed
+
+... leaving the k->str could lead to buffer over-reads later on.
+
+CVE: CVE-2018-1000301
+Assisted-by: Max Dymond
+
+Detected by OSS-Fuzz.
+Bug: https://curl.haxx.se/docs/adv_2018-b138.html
+Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7105
+---
+ lib/http.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/lib/http.c
++++ b/lib/http.c
+@@ -2924,6 +2924,8 @@ CURLcode Curl_http_readwrite_headers(str
+ {
+   CURLcode result;
+   struct SingleRequest *k = &data->req;
++  ssize_t onread = *nread;
++  char *ostr = k->str;
+ 
+   /* header line within buffer loop */
+   do {
+@@ -2988,7 +2990,9 @@ CURLcode Curl_http_readwrite_headers(str
+         else {
+           /* this was all we read so it's all a bad header */
+           k->badheader = HEADER_ALLBAD;
+-          *nread = (ssize_t)rest_length;
++          *nread = onread;
++          k->str = ostr;
++          return CURLE_OK;
+         }
+         break;
+       }