[MFSA-2023-18] Security Vulnerabilities fixed in Thunderbird 102.11

CVE-2023-32205: Browser prompts could have been obscured by popups (high)
In multiple cases browser prompts could have been obscured by popups controlled by content. These could have led to potential user confusion and spoofing attacks.

CVE-2023-32206: Crash in RLBox Expat driver (high)
An out-of-bound read could have led to a crash in the RLBox Expat driver.

CVE-2023-32207: Potential permissions request bypass via clickjacking (high)
A missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions.

CVE-2023-32211: Content process crash due to invalid wasm code (moderate)
A type checking bug would have led to invalid code being compiled.

CVE-2023-32212: Potential spoof due to obscured address bar (moderate)
An attacker could have positioned a <code>datalist</code> element to obscure the address bar.

CVE-2023-32213: Potential memory corruption in FileReader::DoReadData() (moderate)
When reading a file, an uninitialized value could have been used as read limit.

CVE-2023-32214: Potential DoS via exposed protocol handlers (low)
Protocol handlers <code>ms-cxh</code> and <code>ms-cxh-full</code> could have been leveraged to trigger a denial of service.
Note: This attack only affects Windows. Other operating systems are not affected.

CVE-2023-32215: Memory safety bugs fixed in Thunderbird 102.11 (high)
Mozilla developers and community members Gabriele Svelto, Andrew Osmond, Emily McDonough, Sebastian Hengst, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 102.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.