community/graphicsmagick: security fixes for various CVEs:

* CVE-2017-11642
* CVE-2017-11722
* CVE-2017-12935
* CVE-2017-12936
* CVE-2017-12937
* CVE-2017-13063
* CVE-2017-13064

Fixes #7748

1 files changed, 96 insertions, 0 deletions

diff --git a/community/graphicsmagick/CVE-2017-13063-13064.patch b/community/graphicsmagick/CVE-2017-13063-13064.patch
new file mode 100644
index 00000000000..ce35e0623c2
--- /dev/null
+++ b/community/graphicsmagick/CVE-2017-13063-13064.patch
@@ -0,0 +1,96 @@
+# HG changeset patch
+# User Bob Friesenhahn <bfriesen@GraphicsMagick.org>
+# Date 1502890099 18000
+# Node ID 54f48ab2d52a2a4af99781057075d8ea9744a649
+# Parent  4970ea920a9388d6f08be1b35d58ef5efded4908
+SVG: Fix buffer-overflow and inconsistent behavior in GetStyleTokens().
+
+diff -r 4970ea920a93 -r 54f48ab2d52a coders/svg.c
+--- a/coders/svg.c	Tue Aug 15 08:05:00 2017 -0500
++++ b/coders/svg.c	Wed Aug 16 08:28:19 2017 -0500
+@@ -267,11 +267,12 @@
+   char
+     **tokens;
+ 
+-  register const char
++  const char
+     *p,
+     *q;
+ 
+-  register size_t
++  size_t
++    alloc_tokens,
+     i;
+ 
+   SVGInfo
+@@ -279,21 +280,27 @@
+ 
+   svg_info=(SVGInfo *) context;
+   *number_tokens=0;
++  alloc_tokens=0;
+   if (text == (const char *) NULL)
+     return((char **) NULL);
+   /*
+     Determine the number of arguments.
++
++    style="fill: red; stroke: blue; stroke-width: 3"
+   */
+   for (p=text; *p != '\0'; p++)
+     if (*p == ':')
+-      (*number_tokens)+=2;
+-  tokens=MagickAllocateMemory(char **,(*number_tokens+2)*sizeof(*tokens));
++      alloc_tokens+=2;
++  if (alloc_tokens == 0)
++    return((char **) NULL);
++  tokens=MagickAllocateMemory(char **,(alloc_tokens+2)*sizeof(*tokens));
+   if (tokens == (char **) NULL)
+     {
+       ThrowException3(svg_info->exception,ResourceLimitError,
+                       MemoryAllocationFailed,UnableToConvertStringToTokens);
+       return((char **) NULL);
+     }
++  (void) memset(tokens,0,(alloc_tokens+2)*sizeof(*tokens));
+   /*
+     Convert string to an ASCII list.
+   */
+@@ -304,14 +311,36 @@
+       if ((*q != ':') && (*q != ';') && (*q != '\0'))
+         continue;
+       tokens[i]=AllocateString(p);
++      if (tokens[i] == NULL)
++        {
++          ThrowException3(svg_info->exception,ResourceLimitError,
++                          MemoryAllocationFailed,UnableToConvertStringToTokens);
++          break;
++        }
+       (void) strlcpy(tokens[i],p,q-p+1);
+-      Strip(tokens[i++]);
++      Strip(tokens[i]);
++      i++;
++      if (i >= alloc_tokens)
++        break;
+       p=q+1;
+     }
+-  tokens[i]=AllocateString(p);
+-  (void) strlcpy(tokens[i],p,q-p+1);
+-  Strip(tokens[i++]);
++  if (i < alloc_tokens)
++    {
++      tokens[i]=AllocateString(p);
++      if (tokens[i] == NULL)
++        {
++          ThrowException3(svg_info->exception,ResourceLimitError,
++                          MemoryAllocationFailed,UnableToConvertStringToTokens);
++        }
++      else
++        {
++          (void) strlcpy(tokens[i],p,q-p+1);
++          Strip(tokens[i]);
++          i++;
++        }
++    }
+   tokens[i]=(char *) NULL;
++  *number_tokens=i;
+   return(tokens);
+ }
+