Use-After-Free Vulnerability in Thunderbird, Firefox ESR, and Firefox

CVE-2019-9790 · HIGH Severity

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

A use-after-free vulnerability can occur when a raw pointer to a DOM element on a page is obtained using JavaScript and the element is then removed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

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