KLA12460
Multiple vulnerabilities in Mozilla Thunderbird

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

Below is a complete list of vulnerabilities:

1. Memory safety vulnerability can be exploited to execute arbitrary code.
2. Code execution vulnerability in Drag&Drop can be exploited via special crafted image to execute arbitrary code.
3. Information disclosure vulnerability in cross-origin responses can be exploited to obtain sensitive information.
4. Security bypass vulnerability in extensions can be exploited to bypass security restrictions.
5. Security bypass vulnerability in iframe can be exploited via special crafted document to bypass security restrictions.
6. Elevation of privilege vulnerability in Maintenance (Updater) Service on Windows can be exploited to gain privileges.
7. Denial of service vulnerability in object state can be exploited via script execution to cause denial of service.
8. Security bypass vulnerability in Web Extension’s Content Security Policy and frame-ancestors directive can be exploited to bypass security restrictions.

Mozilla Thunderbird earlier than 91.6.0

Update to the latest version
Download Thunderbird

MFSA2022-06