Ubuntu Security Notice 2735-1 – It was discovered that the DOM tree could be corrupted during parsing in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass same-origin restrictions or cause a denial of service. An issue was discovered in NavigatorServiceWorker::serviceWorker in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass same-origin restrictions. Various other issues were also addressed.