KLA12319
Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. An use after free vulnerability in MessageTask can be exploited to cause denial of service.
2. A memory safety vulnerability can be exploited to execute arbitrary code.

Mozilla Thunderbird earlier than 78.15

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MFSA2021-46