ghostscript : CVE-2016-10219, CVE-2016-10220, CVE-2017-5951

The intersect function in base/gxfill.c in Artifex Software, Inc. Ghostscript
9.20 allows remote attackers to cause a denial of service (divide-by-zero
error and application crash) via a crafted file.

The gs_makewordimagedevice function in base/gsdevmem.c in Artifex Software, Inc.
Ghostscript 9.20 allows remote attackers to cause a denial of service (NULL
pointer dereference and application crash) via a crafted file that is
mishandled in the PDF Transparency module.

The mem_get_bits_rectangle function in base/gdevmem.c in Artifex Software, Inc.
Ghostscript 9.20 allows remote attackers to cause a denial of service (NULL
pointer dereference and application crash) via a crafted file.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-10219
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-10220
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5951

Upstream patches:
http://git.ghostscript.com/?p=ghostpdl.git;h=4bef1a1d32e29b68855616020dbff574b9cda08f
http://git.ghostscript.com/?p=ghostpdl.git;h=daf85701dab05f17e924a48a81edc9195b4a04e8
http://git.ghostscript.com/?p=ghostpdl.git;h=bfa6b2ecbe48edc69a7d9d22a12419aed25960b8

(From OE-Core rev: 6679a4d4379f6f18554ed0042546cce94d5d0b19)

Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/ghostscript/ghostscript_9.20.bb

@@ -32,6 +32,9 @@ SRC_URI = "${SRC_URI_BASE} \
            file://objarch.h \
            file://cups-no-gcrypt.patch \
            file://CVE-2017-7207.patch \
+           file://CVE-2016-10219.patch \
+           file://CVE-2016-10220.patch \
+           file://CVE-2017-5951.patch \
            "
 
 SRC_URI_class-native = "${SRC_URI_BASE} \