libpng: update 1.6.19 -> 1.6.20 (CVE-2015-8126)

Version 1.6.20beta01 [November 20, 2015]
  Avoid potential pointer overflow/underflow in png_handle_sPLT() and
    png_handle_pCAL() (Bug report by John Regehr).

Version 1.6.20beta02 [November 23, 2015]
  Fixed incorrect implementation of png_set_PLTE() that uses png_ptr
    not info_ptr, that left png_set_PLTE() open to the CVE-2015-8126
    vulnerability.

Version 1.6.20beta03 [November 24, 2015]
  Backported tests from libpng-1.7.0beta69.

Version 1.6.20rc01 [November 26, 2015]
  Fixed an error in handling of bad zlib CMINFO field in pngfix, found by
    American Fuzzy Lop, reported by Brian Carpenter.  inflate() doesn't
    immediately fault a bad CMINFO field; instead a 'too far back' error
    happens later (at least some times).  pngfix failed to limit CMINFO to
    the allowed values but then assumed that window_bits was in range,
    triggering an assert. The bug is mostly harmless; the PNG file cannot
    be fixed.

Version 1.6.20rc02 [November 29, 2015]
  In libpng 1.6 zlib initialization was changed to use the window size
    in the zlib stream, not a fixed value. This causes some invalid images,
    where CINFO is too large, to display 'correctly' if the rest of the
    data is valid.  This provides a workaround for zlib versions where the
    error arises (ones that support the API change to use the window size
    in the stream).

Version 1.6.20 [December 3, 2015]
  No changes.

(From OE-Core rev: ead74a1fdfbc5b5a00683d74a8b0ff2adf4856be)

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 5 deletions

diff --git a/meta/recipes-multimedia/libpng/libpng_1.6.19.bb b/meta/recipes-multimedia/libpng/libpng_1.6.20.bb
index 214f9d3a10..6c149d22dc 100644
--- a/meta/recipes-multimedia/libpng/libpng_1.6.19.bb
+++ b/meta/recipes-multimedia/libpng/libpng_1.6.20.bb
@@ -2,16 +2,15 @@ SUMMARY = "PNG image format decoding library"
 HOMEPAGE = "http://www.libpng.org/"
 SECTION = "libs"
 LICENSE = "Libpng"
-LIC_FILES_CHKSUM = "file://LICENSE;md5=586a8dac4d039e74af7b68ff2bc5fc41 \
-                    file://png.h;endline=17;md5=a38a64f8b5cf0ea4e2d4c2cb47150151 \
-                    file://png.h;beginline=19;endline=111;md5=d3e773acb87d7a35863203538167a776"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=55b60b5bb3ed92fbf9197e565a7fac02 \
+                    file://png.h;endline=112;md5=a6352a338642f0dbd2fc280ae060d3e9"
 DEPENDS = "zlib"
 LIBV = "16"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/project/libpng/libpng${LIBV}/${PV}/libpng-${PV}.tar.xz \
           "
-SRC_URI[md5sum] = "1e6a458429e850fc93c1f3b6dc00a48f"
-SRC_URI[sha256sum] = "311c5657f53516986c67713c946f616483e3cdb52b8b2ee26711be74e8ac35e8"
+SRC_URI[md5sum] = "3968acb7c66ef81a9dab867f35d0eb4b"
+SRC_URI[sha256sum] = "55c5959e9f3484d96141a3226c53bc9da42a4845e70879d3e1d6e94833d1918b"
 
 BINCONFIG = "${bindir}/libpng-config ${bindir}/libpng16-config"