gnu: php: Update to 7.1.8.

* gnu/packages/patches/gd-CVE-2017-7890.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it
* gnu/packages/php.scm (php): Update to 7.1.8.

gnu/local.mk

@@ -625,6 +625,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/gcr-disable-failing-tests.patch		\
   %D%/packages/patches/gcr-fix-collection-tests-to-work-with-gpg-21.patch	\
   %D%/packages/patches/gdk-pixbuf-list-dir.patch		\
+  %D%/packages/patches/gd-CVE-2017-7890.patch		\
   %D%/packages/patches/gd-fix-gd2-read-test.patch		\
   %D%/packages/patches/gd-fix-tests-on-i686.patch		\
   %D%/packages/patches/gd-freetype-test-failure.patch		\

gnu/packages/patches/gd-CVE-2017-7890.patch

@@ -0,0 +1,30 @@
+From 99ba5c353373ed198f54af66fe4e355ebb96e363 Mon Sep 17 00:00:00 2001
+From: LEPILLER Julien <julien@lepiller.eu>
+Date: Thu, 3 Aug 2017 17:04:17 +0200
+Subject: [PATCH] Fix #399: Buffer over-read into uninitialized memory.
+
+The stack allocated color map buffers were not zeroed before usage, and
+so undefined palette indexes could cause information leakage.
+
+This is CVE-2017-7890.
+---
+ src/gd_gif_in.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/gd_gif_in.c b/src/gd_gif_in.c
+index 008d1ec..c195448 100644
+--- a/src/gd_gif_in.c
++++ b/src/gd_gif_in.c
+@@ -216,6 +216,9 @@ BGD_DECLARE(gdImagePtr) gdImageCreateFromGifCtx(gdIOCtxPtr fd)
+ 
+ 	gdImagePtr im = 0;
+ 
++	memset(ColorMap, 0, 3 * MAXCOLORMAPSIZE);
++	memset(localColorMap, 0, 3 * MAXCOLORMAPSIZE);
++
+ 	if(!ReadOK(fd, buf, 6)) {
+ 		return 0;
+ 	}
+-- 
+2.13.3
+

gnu/packages/php.scm

@@ -49,10 +49,21 @@
   #:use-module (guix build-system gnu)
   #:use-module ((guix licenses) #:prefix license:))
 
+(define gd-for-php
+  (package
+    (inherit gd)
+    (source (origin
+             (inherit (package-source gd))
+             (patches 
+               (append
+                 (origin-patches (package-source gd))
+                 (search-patches "gd-CVE-2017-7890.patch")))))))
+
+
 (define-public php
   (package
     (name "php")
-    (version "7.1.6")
+    (version "7.1.8")
     (home-page "https://secure.php.net/")
     (source (origin
               (method url-fetch)
@@ -60,7 +71,7 @@
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0nr49gqhk4pv8kcdc60cl1mgwlinawpraq9ba15whzmb472lsn01"))
+                "1aramb6dm57pr2iz61id9vzfy7h5qkb6bf7dxhrwnjk0723qahw9"))
               (modules '((guix build utils)))
               (snippet
                '(with-directory-excursion "ext"
@@ -282,7 +293,7 @@
        ("curl" ,curl)
        ("cyrus-sasl" ,cyrus-sasl)
        ("freetype" ,freetype)
-       ("gd" ,gd)
+       ("gd" ,gd-for-php)
        ("gdbm" ,gdbm)
        ("glibc" ,glibc)
        ("gmp" ,gmp)