MFSA2021-05 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.7 (CVE-2020-26976)
4
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
01/07/2021
01/28/2021
01/27/2021
02/03/2021
Description
When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.
Solution(s)
- mozilla-thunderbird-upgrade-78_7
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