Ubuntu Security Notice 3596-2 - USN-3596-1 fixed vulnerabilities in Firefox. The update caused an issue where it was not possible to customize the toolbars when running Firefox in Unity. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash or opening new tabs, escape the sandbox, bypass same-origin restrictions, obtain sensitive information, confuse the user with misleading permission requests, or execute arbitrary code. It was discovered that the fetch API could incorrectly return cached copies of no-store/no-cache resources in some circumstances. A local attacker could potentially exploit this to obtain sensitive information in environments where multiple users share a common profile. Various other issues were also addressed.
e494dec5d0c796d9460535c0b44c093d5932022a735b81473a1415ba41c11a0fUbuntu Security Notice 3596-1 - Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash or opening new tabs, escape the sandbox, bypass same-origin restrictions, obtain sensitive information, confuse the user with misleading permission requests, or execute arbitrary code. Various other issues were also addressed.
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