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Amazon Linux AMI 2: CVE-2020-26976: Security patch for thunderbird (ALAS-2021-1603)

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Amazon Linux AMI 2: CVE-2020-26976: Security patch for thunderbird (ALAS-2021-1603)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
01/07/2021
Created
02/23/2021
Added
02/22/2021
Modified
02/22/2021

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)

  • amazon-linux-ami-2-upgrade-thunderbird
  • amazon-linux-ami-2-upgrade-thunderbird-debuginfo

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