KLA11946
Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to execute arbitrary code, spoof user interface, bypass security restrictions, gain privileges.

Below is a complete list of vulnerabilities:

1. Security UI vulnerability in eval() function can be exploited to spoof user interface and execute arbitrary code.
2. Use After Free vulnerability on Windows can be exploited to execute arbitrary code.
3. Elevation of privilege vulnerability on Windows can be exploited to bypass security restrictions, gain privileges and execute arbitrary code.

Mozilla Thunderbird earlier than 68.12

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MFSA2020-40