CVE-2014-3670
Community BUG:
https://bugs.php.net/bug.php?id=68113
Community CODE:
http://git.php.net/?p=php-src.git;a=commit;h=ddb207e7fa2e9adeba021a1303c3781efda5409b
Below is the community patch.

Not including the test files at the moment:
ext/exif/tests/bug68113.jpg
ext/exif/tests/bug68113.phpt
because our version of gpatch doesn't understand the git binary data file.


From ddb207e7fa2e9adeba021a1303c3781efda5409b Mon Sep 17 00:00:00 2001
From: Stanislav Malyshev <[email protected]>
Date: Sun, 28 Sep 2014 16:57:42 -0700
Subject: [PATCH] Fix bug #68113 (Heap corruption in exif_thumbnail())

---
 ext/exif/exif.c              |   4 ++--
 ext/exif/tests/bug68113.jpg  | Bin 0 -> 368 bytes
 ext/exif/tests/bug68113.phpt |  17 +++++++++++++++++
 3 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100755 ext/exif/tests/bug68113.jpg
 create mode 100644 ext/exif/tests/bug68113.phpt

diff --git a/ext/exif/exif.c b/ext/exif/exif.c
index 38907b4..637ebf9 100644
--- a/ext/exif/exif.c
+++ b/ext/exif/exif.c
@@ -2426,11 +2426,11 @@ static void* exif_ifd_make_value(image_info_data *info_data, int motorola_intel
 					data_ptr += 8;
 					break;
 				case TAG_FMT_SINGLE:
-					memmove(data_ptr, &info_data->value.f, byte_count);
+					memmove(data_ptr, &info_value->f, 4);
 					data_ptr += 4;
 					break;
 				case TAG_FMT_DOUBLE:
-					memmove(data_ptr, &info_data->value.d, byte_count);
+					memmove(data_ptr, &info_value->d, 8);
 					data_ptr += 8;
 					break;
 			}