CVE-2023-4576

Summary

CVE-2023-4576 is a critical vulnerability affecting Firefox and Thunderbird on Windows. An integer overflow in `RecordedSourceSurfaceCreation` can lead to a heap buffer overflow, potentially resulting in the leakage of sensitive data. This issue could enable a sandbox escape and put user data at risk. It affects Firefox versions below 117, Firefox ESR versions below 102.15 and 115.2, and Thunderbird versions below 102.15 and 115.2. Users are strongly encouraged to update their browsers as soon as possible.

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