Ubuntu Security Notice 2877-1 – A bad cast was discovered in V8. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. An issue was discovered when initializing the UnacceleratedImageBufferSurface class in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. Various other issues were also addressed.