KLA12397
Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to cause denial of service, spoof user interface.

Below is a complete list of vulnerabilities:

1. Buffer overflow vulnerability in libolm can be exploited remotely via special crafted message to cause denial of service.
2. Security UI vulnerability can be exploited via special crafted message to spoof user interface.

Mozilla Thunderbird earlier than 91.4.1

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MFSA2021-55