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

Below is a complete list of vulnerabilities:

1. Buffer overflow and out-of-bounds read vulnerability related to ANGLE graphics library can be exploited to cause denial of service;
2. Use-after-free vulnerability related to Skia library can be exploited to cause denial of service;
3. Buffer overflow vulnerability related to Skia library can be exploited to cause denial of service;
4. Vulnerability related to same-origin policy can be exploited to bypass security restrictions and possibly to obtain sensitive information;
5. Out-of-bounds write vulnerability can be exploited to cause denial of service;
6. Memory corruption vulnerabilities can be exploited to execute arbitrary code.

Mozilla Thunderbird earlier than 60.4

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Mozilla Foundation Security Advisory 2018-31