main/curl: security upgrade - fixes #64373.1-stable

CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619,
CVE-2016-8620, CVE-2016-8621 CVE-2016-8622, CVE-2016-8623, CVE-2016-8624

1 files changed, 50 insertions, 0 deletions

diff --git a/main/curl/CVE-2016-8618.patch b/main/curl/CVE-2016-8618.patch
new file mode 100644
index 0000000000..6d4eaaf9d6
--- /dev/null
+++ b/main/curl/CVE-2016-8618.patch
@@ -0,0 +1,50 @@
+From 31106a073882656a2a5ab56c4ce2847e9a334c3c Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Wed, 28 Sep 2016 10:15:34 +0200
+Subject: [PATCH] aprintf: detect wrap-around when growing allocation
+
+On 32bit systems we could otherwise wrap around after 2GB and allocate 0
+bytes and crash.
+
+CVE-2016-8618
+
+Bug: https://curl.haxx.se/docs/adv_20161102D.html
+Reported-by: Cure53
+---
+ lib/mprintf.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/lib/mprintf.c b/lib/mprintf.c
+index dbedeaa..2c88aa8 100644
+--- a/lib/mprintf.c
++++ b/lib/mprintf.c
+@@ -1034,20 +1034,23 @@ static int alloc_addbyter(int output, FILE *data)
+     }
+     infop->alloc = 32;
+     infop->len =0;
+   }
+   else if(infop->len+1 >= infop->alloc) {
+-    char *newptr;
++    char *newptr = NULL;
++    size_t newsize = infop->alloc*2;
+ 
+-    newptr = realloc(infop->buffer, infop->alloc*2);
++    /* detect wrap-around or other overflow problems */
++    if(newsize > infop->alloc)
++      newptr = realloc(infop->buffer, newsize);
+ 
+     if(!newptr) {
+       infop->fail = 1;
+       return -1; /* fail */
+     }
+     infop->buffer = newptr;
+-    infop->alloc *= 2;
++    infop->alloc = newsize;
+   }
+ 
+   infop->buffer[ infop->len ] = outc;
+ 
+   infop->len++;
+-- 
+2.9.3
+