main/curl: security fixes

(CVE-2018-16839, CVE-2018-16840, CVE-2018-16842)

Fixes #9613

main/curl/APKBUILD

@@ -4,7 +4,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=curl
 pkgver=7.61.1
-pkgrel=0
+pkgrel=1
 pkgdesc="URL retrival utility and library"
 url="https://curl.haxx.se"
 arch="all"
@@ -15,10 +15,17 @@ source="http://curl.haxx.se/download/$pkgname-$pkgver.tar.xz"
 subpackages="$pkgname-dbg $pkgname-doc $pkgname-dev libcurl"
 source="https://curl.haxx.se/download/$pkgname-$pkgver.tar.xz
 	use-OPENSSL_config.patch
+	CVE-2018-16839.patch
+	CVE-2018-16840.patch
+	CVE-2018-16842.patch
 	"
 builddir="$srcdir/$pkgname-$pkgver"
 
 # secfixes:
+#   7.61.1-r1:
+#     - CVE-2018-16839
+#     - CVE-2018-16840
+#     - CVE-2018-16842
 #   7.61.1-r0:
 #     - CVE-2018-14618
 #   7.61.0-r0:
@@ -107,4 +114,7 @@ libcurl() {
 }
 
 sha512sums="e6f82a7292c70841162480c8880d25046bcfa64058f4ff76f7d398c85da569af1c244442c9c58a3478d59264365ff8e39eed2fb564cb137118588f7862e64e9a  curl-7.61.1.tar.xz
-708527e73f9512c50e2250ca26786ba8994dc05fd2e362c1feb274e251219fb4bfc97e7e7722aa12424ccaf4c511d90d8820561c82a24f103b9ee2b743f4be28  use-OPENSSL_config.patch"
+708527e73f9512c50e2250ca26786ba8994dc05fd2e362c1feb274e251219fb4bfc97e7e7722aa12424ccaf4c511d90d8820561c82a24f103b9ee2b743f4be28  use-OPENSSL_config.patch
+4a28e4dcf36bf8e2fc5658d7fcee311d29452f4bed1479bad02772a8b7969c9dc653480b85715a5fe2bd2c2a8ae59e94fe72ffc6d0fe765131010d8f64bdfaee  CVE-2018-16839.patch
+c1a684f17267b08f77625064ac62e4f06989c552d6d501565f8bebf31d3a96a613f0683376ec7cc16f6489554dcca4dcb1d428461159b82434c076df44ef5b38  CVE-2018-16840.patch
+dcaca036eafaaae66eba99808d00ff6bed3c9e59c2c1239ca1ddcf54c9e1c53edabd543dc6925ded3cdf9efd39c0968353527ae5ed0b986cefba333fbc7fd1af  CVE-2018-16842.patch"

main/curl/CVE-2018-16839.patch

+From f3a24d7916b9173c69a3e0ee790102993833d6c5 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Fri, 28 Sep 2018 16:08:16 +0200
+Subject: [PATCH] Curl_auth_create_plain_message: fix too-large-input-check
+
+CVE-2018-16839
+Reported-by: Harry Sintonen
+Bug: https://curl.haxx.se/docs/CVE-2018-16839.html
+---
+ lib/vauth/cleartext.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/vauth/cleartext.c b/lib/vauth/cleartext.c
+index a10edbdc74..be6d6111e2 100644
+--- a/lib/vauth/cleartext.c
++++ b/lib/vauth/cleartext.c
+@@ -74,7 +74,7 @@ CURLcode Curl_auth_create_plain_message(struct Curl_easy *data,
+   plen = strlen(passwdp);
+ 
+   /* Compute binary message length. Check for overflows. */
+-  if((ulen > SIZE_T_MAX/2) || (plen > (SIZE_T_MAX/2 - 2)))
++  if((ulen > SIZE_T_MAX/4) || (plen > (SIZE_T_MAX/2 - 2)))
+     return CURLE_OUT_OF_MEMORY;
+   plainlen = 2 * ulen + plen + 2;
+ 

main/curl/CVE-2018-16840.patch

+From 81d135d67155c5295b1033679c606165d4e28f3f Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Thu, 18 Oct 2018 15:07:15 +0200
+Subject: [PATCH] Curl_close: clear data->multi_easy on free to avoid
+ use-after-free
+
+Regression from b46cfbc068 (7.59.0)
+CVE-2018-16840
+Reported-by: Brian Carpenter (Geeknik Labs)
+
+Bug: https://curl.haxx.se/docs/CVE-2018-16840.html
+---
+ lib/url.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/lib/url.c b/lib/url.c
+index 723b898065..0d5a13f996 100644
+--- a/lib/url.c
++++ b/lib/url.c
+@@ -331,10 +331,12 @@ CURLcode Curl_close(struct Curl_easy *data)
+        and detach this handle from there. */
+     curl_multi_remove_handle(data->multi, data);
+ 
+-  if(data->multi_easy)
++  if(data->multi_easy) {
+     /* when curl_easy_perform() is used, it creates its own multi handle to
+        use and this is the one */
+     curl_multi_cleanup(data->multi_easy);
++    data->multi_easy = NULL;
++  }
+ 
+   /* Destroy the timeout list that is held in the easy handle. It is
+      /normally/ done by curl_multi_remove_handle() but this is "just in

main/curl/CVE-2018-16842.patch

+From d530e92f59ae9bb2d47066c3c460b25d2ffeb211 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Sun, 28 Oct 2018 01:33:23 +0200
+Subject: [PATCH] voutf: fix bad arethmetic when outputting warnings to stderr
+
+CVE-2018-16842
+Reported-by: Brian Carpenter
+Bug: https://curl.haxx.se/docs/CVE-2018-16842.html
+---
+ src/tool_msgs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/tool_msgs.c b/src/tool_msgs.c
+index 832ed8147b..f5e1df25fb 100644
+--- a/src/tool_msgs.c
++++ b/src/tool_msgs.c
+@@ -67,7 +67,7 @@ static void voutf(struct GlobalConfig *config,
+         (void)fwrite(ptr, cut + 1, 1, config->errors);
+         fputs("\n", config->errors);
+         ptr += cut + 1; /* skip the space too */
+-        len -= cut;
++        len -= cut + 1;
+       }
+       else {
+         fputs(ptr, config->errors);