Ubuntu Security Notice 2937-1 - A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.
9e8b68079ff3270e979de901c8faf5bdecbde047aa6e873a355a2b80f1b1099e
Apple Security Advisory 2015-06-30-4 - Safari 8.0.7, Safari 7.1.7, and Safari 6.2.7 are now available and address account takeover, WebSQL database access, and various other issues.
65a4e7e1055cabeaafab321c18f2600435a9a6b41433f5acd7cbbed23fa24c05
Apple Security Advisory 2015-06-30-1 - iOS 8.4 is now available and addresses denial of service, an incorrect issued certificate, arbitrary code execution, and various other flaws.
aa64c9a10b61a44ca9cbe32378688da43c9948d31f37b09253079d2bdffc2fbf