p7zip: patch CVE-2016-2334 and CVE-2016-2335

CVE-2016-2334: Heap-buffer-overflow vulnerability
CVE-2016-2335: Out-of-bounds read vuilerability

See http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html

Also, add a test.

Closes #1155.

Closes #1184.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>

Formula/p7zip.rb

@@ -3,6 +3,7 @@ class P7zip < Formula
   homepage "http://p7zip.sourceforge.net/"
   url "https://downloads.sourceforge.net/project/p7zip/p7zip/15.14.1/p7zip_15.14.1_src_all.tar.bz2"
   sha256 "699db4da3621904113e040703220abb1148dfef477b55305e2f14a4f1f8f25d4"
+  revision 1
 
   bottle do
     cellar :any_skip_relocation
@@ -11,6 +12,17 @@ class P7zip < Formula
     sha256 "f5994168925b3d141a8b91cd85a4f39d395674da19e8774cab1b00c6c1b63048" => :mavericks
   end
 
+  # CVE-2016-2334 and CVE-2016-2335
+  # http://www.talosintel.com/reports/TALOS-2016-0093/
+  # http://www.talosintel.com/reports/TALOS-2016-0094/
+  # https://packages.qa.debian.org/p/p7zip/news/20160515T102412Z.html
+  patch do
+    url "https://mirrors.ocf.berkeley.edu/debian/pool/main/p/p7zip/p7zip_15.14.1+dfsg-2.debian.tar.xz"
+    mirror "https://mirrors.kernel.org/debian/pool/main/p/p7zip/p7zip_15.14.1%2bdfsg-2.debian.tar.xz"
+    sha256 "f4db6803535fc30b6ae9db5aabfd9f57a851c6773d72073847ec5e3731b7af37"
+    apply "patches/CVE-2016-2334.patch", "patches/CVE-2016-2335.patch"
+  end
+
   def install
     mv "makefile.macosx_llvm_64bits", "makefile.machine"
     system "make", "all3",
@@ -20,4 +32,11 @@ class P7zip < Formula
                    "DEST_MAN=#{man}",
                    "install"
   end
+
+  test do
+    (testpath/"foo.txt").write("hello world!\n")
+    system bin/"7z", "a", "-t7z", "foo.7z", "foo.txt"
+    system bin/"7z", "e", "foo.7z", "-oout"
+    assert_equal "hello world!\n", File.read(testpath/"out/foo.txt")
+  end
 end