Ubuntu Security Notice 2677-1 - An uninitialized value issue was discovered in ICU. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. A use-after-free was discovered in the GPU process implementation in Chromium. 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 application crash, or execute arbitrary code with the privileges of the user invoking the program. Various other issues were also addressed.
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