Use-after-free vulnerability in Thunderbird and Firefox versions < 58

CVE-2018-5099 · HIGH Severity

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

A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in a potentially exploitable crash when these references are used. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.

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