gnu: libxfont2: Update to 2.0.2.

* gnu/packages/xorg.scm (libxfont2): Update to 2.0.2.
[source](patches): Remove.
* gnu/packages/patches/libxfont-CVE-2017-13720.patch,
gnu/packages/patches/libxfont-CVE-2017-13722.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu/local.mk

@@ -822,8 +822,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/libvirt-CVE-2017-1000256.patch		\
   %D%/packages/patches/libvpx-CVE-2016-2818.patch		\
   %D%/packages/patches/libxcb-python-3.5-compat.patch		\
-  %D%/packages/patches/libxfont-CVE-2017-13720.patch		\
-  %D%/packages/patches/libxfont-CVE-2017-13722.patch		\
   %D%/packages/patches/libxslt-generated-ids.patch		\
   %D%/packages/patches/libxt-guix-search-paths.patch		\
   %D%/packages/patches/lierolibre-check-unaligned-access.patch	\

gnu/packages/patches/libxfont-CVE-2017-13720.patch

@@ -1,36 +0,0 @@
-Fix CVE-2017-13720.
-
-Copied from upstream source repository:
-<https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608>
-
-
-From d1e670a4a8704b8708e493ab6155589bcd570608 Mon Sep 17 00:00:00 2001
-From: Michal Srb <msrb@suse.com>
-Date: Thu, 20 Jul 2017 13:38:53 +0200
-Subject: Check for end of string in PatternMatch (CVE-2017-13720)
-
-If a pattern contains '?' character, any character in the string is skipped,
-even if it is '\0'. The rest of the matching then reads invalid memory.
-
-Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
-Signed-off-by: Julien Cristau <jcristau@debian.org>
-
-diff --git a/src/fontfile/fontdir.c b/src/fontfile/fontdir.c
-index 4ce2473..996b7d1 100644
---- a/src/fontfile/fontdir.c
-+++ b/src/fontfile/fontdir.c
-@@ -400,8 +400,10 @@ PatternMatch(char *pat, int patdashes, char *string, int stringdashes)
- 		}
- 	    }
- 	case '?':
--	    if (*string++ == XK_minus)
-+	    if ((t = *string++) == XK_minus)
- 		stringdashes--;
-+	    if (!t)
-+		return 0;
- 	    break;
- 	case '\0':
- 	    return (*string == '\0');
--- 
-cgit v0.10.2
-

gnu/packages/patches/libxfont-CVE-2017-13722.patch

@@ -1,53 +0,0 @@
-Fix CVE-2017-13722.
-
-Copied from upstream source repository:
-<https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd>
-
-From 672bb944311392e2415b39c0d63b1e1902905bcd Mon Sep 17 00:00:00 2001
-From: Michal Srb <msrb@suse.com>
-Date: Thu, 20 Jul 2017 17:05:23 +0200
-Subject: pcfGetProperties: Check string boundaries (CVE-2017-13722)
-
-Without the checks a malformed PCF file can cause the library to make
-atom from random heap memory that was behind the `strings` buffer.
-This may crash the process or leak information.
-
-Signed-off-by: Julien Cristau <jcristau@debian.org>
-
-diff --git a/src/bitmap/pcfread.c b/src/bitmap/pcfread.c
-index dab1c44..ae34c28 100644
---- a/src/bitmap/pcfread.c
-+++ b/src/bitmap/pcfread.c
-@@ -45,6 +45,7 @@ from The Open Group.
- 
- #include <stdarg.h>
- #include <stdint.h>
-+#include <string.h>
- 
- void
- pcfError(const char* message, ...)
-@@ -311,11 +312,19 @@ pcfGetProperties(FontInfoPtr pFontInfo, FontFilePtr file,
-     if (IS_EOF(file)) goto Bail;
-     position += string_size;
-     for (i = 0; i < nprops; i++) {
-+	if (props[i].name >= string_size) {
-+	    pcfError("pcfGetProperties(): String starts out of bounds (%ld/%d)\n", props[i].name, string_size);
-+	    goto Bail;
-+	}
- 	props[i].name = MakeAtom(strings + props[i].name,
--				 strlen(strings + props[i].name), TRUE);
-+				 strnlen(strings + props[i].name, string_size - props[i].name), TRUE);
- 	if (isStringProp[i]) {
-+	    if (props[i].value >= string_size) {
-+		pcfError("pcfGetProperties(): String starts out of bounds (%ld/%d)\n", props[i].value, string_size);
-+		goto Bail;
-+	    }
- 	    props[i].value = MakeAtom(strings + props[i].value,
--				      strlen(strings + props[i].value), TRUE);
-+				      strnlen(strings + props[i].value, string_size - props[i].value), TRUE);
- 	}
-     }
-     free(strings);
--- 
-cgit v0.10.2
-

gnu/packages/xorg.scm

@@ -4891,16 +4891,14 @@ new API's in libXft, or the legacy API's in libX11.")
 (define-public libxfont2
   (package
     (inherit libxfont)
-    (version "2.0.1")
+    (version "2.0.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://xorg/individual/lib/libXfont2-"
                                   version ".tar.bz2"))
-              (patches (search-patches "libxfont-CVE-2017-13720.patch"
-                                       "libxfont-CVE-2017-13722.patch"))
               (sha256
                (base32
-                "0znvwk36nhmyqpmhbm9mzisgixp1mp5qkfald8x1n5yxbm3vpyz9"))))))
+                "04f1lswh1ridkycgaivf1hrr77l5ap8smbfr2rqjrm7phwxqs24l"))))))
 
 (define-public libxi
   (package