KLA12031
Multiple vulnerabilities in Mozilla Thunderbird

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

Below is a complete list of vulnerabilities:

1. A security bypass vulnerability in proxy.onRequest can be exploited remotely to bypass security restrictions and obtain sensitive information.
2. A security bypass vulnerability for Windows can be exploited to bypass security restrictions.
3. A use after free vulnerability in StyleGenericFlexBasis object can be exploited to potentially cause denial of service.
4. A heap buffer overflow vulnerability in WebGL can be exploited to potentially cause denial of service.
5. A memory corruption vulnerability can be exploited to execute arbitrary code.
6. A security bypass bypass vulnerability in slipstream can be exploited to obtain sensitive information.
7. A security bypass vulnerability in CSS Sanitizer can be exploited to bypass security restrictions.
8. A uninitialized use vulnerability in V8 can be exploited to obtain sensitive informtaion and bypass security restrictions.

Mozilla Thunderbird earlier than 78.6

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MFSA2020-56