libexif: patch for CVE-2017-7544

(From OE-Core rev: b25f5e8efbe723520fa6e6311767c35e4cb71859)

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 42 insertions, 1 deletions

diff --git a/meta/recipes-support/libexif/libexif/CVE-2017-7544.patch b/meta/recipes-support/libexif/libexif/CVE-2017-7544.patch
new file mode 100644
index 0000000000..e49481ff84
--- /dev/null
+++ b/meta/recipes-support/libexif/libexif/CVE-2017-7544.patch
@@ -0,0 +1,40 @@
+From 8a92f964a66d476ca8907234359e92a70fc1325b Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Tue, 28 Aug 2018 15:12:10 +0800
+Subject: [PATCH] On saving makernotes, make sure the makernote container tags
+ has a type with 1 byte components.
+
+Fixes (at least):
+        https://sourceforge.net/p/libexif/bugs/130
+        https://sourceforge.net/p/libexif/bugs/129
+
+Upstream-Status: Backport[https://github.com/libexif/libexif/commit/
+c39acd1692023b26290778a02a9232c873f9d71a#diff-830e348923810f00726700b083ec00cd]
+
+CVE: CVE-2017-7544
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+---
+ libexif/exif-data.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/libexif/exif-data.c b/libexif/exif-data.c
+index 67df4db..6bf89eb 100644
+--- a/libexif/exif-data.c
++++ b/libexif/exif-data.c
+@@ -255,6 +255,12 @@ exif_data_save_data_entry (ExifData *data, ExifEntry *e,
+                        exif_mnote_data_set_offset (data->priv->md, *ds - 6);
+                        exif_mnote_data_save (data->priv->md, &e->data, &e->size);
+                        e->components = e->size;
++                        if (exif_format_get_size (e->format) != 1) {
++                               /* e->format is taken from input code,
++                                * but we need to make sure it is a 1 byte
++                                * entity due to the multiplication below. */
++                               e->format = EXIF_FORMAT_UNDEFINED;
++                       }
+                }
+        }
+ 
+-- 
+2.7.4
+
diff --git a/meta/recipes-support/libexif/libexif_0.6.21.bb b/meta/recipes-support/libexif/libexif_0.6.21.bb
index cff4caede9..b550a1125c 100644
--- a/meta/recipes-support/libexif/libexif_0.6.21.bb
+++ b/meta/recipes-support/libexif/libexif_0.6.21.bb
@@ -4,7 +4,8 @@ SECTION = "libs"
 LICENSE = "LGPLv2.1"
 LIC_FILES_CHKSUM = "file://COPYING;md5=243b725d71bb5df4a1e5920b344b86ad"
 
-SRC_URI = "${SOURCEFORGE_MIRROR}/libexif/libexif-${PV}.tar.bz2"
+SRC_URI = "${SOURCEFORGE_MIRROR}/libexif/libexif-${PV}.tar.bz2 \
+           file://CVE-2017-7544.patch"
 
 SRC_URI[md5sum] = "27339b89850f28c8f1c237f233e05b27"
 SRC_URI[sha256sum] = "16cdaeb62eb3e6dfab2435f7d7bccd2f37438d21c5218ec4e58efa9157d4d41a"