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, 49 insertions, 0 deletions

diff --git a/package/network/utils/curl/patches/105-CVE-2017-1000254.patch b/package/network/utils/curl/patches/105-CVE-2017-1000254.patch
new file mode 100644
index 0000000000..56b0235583
--- /dev/null
+++ b/package/network/utils/curl/patches/105-CVE-2017-1000254.patch
@@ -0,0 +1,49 @@
+From 29b251362e1839d7094993edbed8f9467069773f Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Mon, 25 Sep 2017 00:35:22 +0200
+Subject: [PATCH] FTP: zero terminate the entry path even on bad input
+
+... a single double quote could leave the entry path buffer without a zero
+terminating byte. CVE-2017-1000254
+
+Test 1152 added to verify.
+
+Reported-by: Max Dymond
+Bug: https://curl.haxx.se/docs/adv_20171004.html
+---
+ lib/ftp.c               |  7 ++++--
+ tests/data/Makefile.inc |  1 +
+ tests/data/test1152     | 61 +++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 67 insertions(+), 2 deletions(-)
+ create mode 100644 tests/data/test1152
+
+--- a/lib/ftp.c
++++ b/lib/ftp.c
+@@ -2825,6 +2825,7 @@ static CURLcode ftp_statemach_act(struct
+         char *ptr=&data->state.buffer[4];  /* start on the first letter */
+         char *dir;
+         char *store;
++        bool entry_extracted = FALSE;
+ 
+         dir = malloc(nread + 1);
+         if(!dir)
+@@ -2856,7 +2857,7 @@ static CURLcode ftp_statemach_act(struct
+               }
+               else {
+                 /* end of path */
+-                *store = '\0'; /* zero terminate */
++                entry_extracted = TRUE;
+                 break; /* get out of this loop */
+               }
+             }
+@@ -2865,7 +2866,9 @@ static CURLcode ftp_statemach_act(struct
+             store++;
+             ptr++;
+           }
+-
++          *store = '\0'; /* zero terminate */
++        }
++        if(entry_extracted) {
+           /* If the path name does not look like an absolute path (i.e.: it
+              does not start with a '/'), we probably need some server-dependent
+              adjustments. For example, this is the case when connecting to