webkitgtk: security bump to version 2.16.6

webkitgtk: security bump to version 2.16.6

Fixes the following security issues:

CVE-2017-7018 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7030 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7034 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7037 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7039 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7046 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7048 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7055 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7056 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7061 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
tvOS before 10.2.2 is affected.  The issue involves the "WebKit" component.
It allows remote attackers to execute arbitrary code or cause a denial of
service (memory corruption and application crash) via a crafted web site.

CVE-2017-7064 - An issue was discovered in certain Apple products.  iOS
before 10.3.3 is affected.  Safari before 10.1.2 is affected.  iCloud before
6.2.2 on Windows is affected.  iTunes before 12.6.2 on Windows is affected.
The issue involves the "WebKit" component.  It allows attackers to bypass
intended memory-read restrictions via a crafted app.

For more details, see the announcement:
https://webkitgtk.org/2017/07/24/webkitgtk2.16.6-released.html

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: "Adrian Perez de Castro" <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit b5582d54a4e0035cf3b9cee57f10906276e8f4d6)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>