CVE-2023-6863

Summary

CVE-2023-6863 is a vulnerability affecting Firefox ESR versions under 115.6, Thunderbird under 115.6, and Firefox under 121. The issue stems from the `ShutdownObserver()` function, which relies on a dynamic type without a virtual destructor, leading to potential undefined behavior. This vulnerability could result in various unintended consequences, including memory corruption and crashes, making it critical for users to apply the necessary patches.

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