Use-after-free vulnerability in nsXULPopupManager::KeyDown function in Mozilla Firefox

CVE-2016-5254 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

Use-after-free vulnerability in the nsXULPopupManager::KeyDown function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) by leveraging keyboard access to use the Alt key during selection of top-level menu items.

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