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CentOS Linux: CVE-2020-26976: Important: firefox security update (Multiple Advisories)

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CentOS Linux: CVE-2020-26976: Important: firefox security update (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
01/07/2021
Created
01/28/2021
Added
01/28/2021
Modified
05/25/2023

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)

  • centos-upgrade-firefox
  • centos-upgrade-firefox-debuginfo
  • centos-upgrade-firefox-debugsource
  • centos-upgrade-thunderbird
  • centos-upgrade-thunderbird-debuginfo
  • centos-upgrade-thunderbird-debugsource

References

  • DSA-4840
  • DSA-4842
  • CVE-2020-26976

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