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Oracle Linux: CVE-2021-23984: ELSA-2021-0990: firefox security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2021-23984: ELSA-2021-0990: firefox security update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
03/23/2021
Created
03/30/2021
Added
03/26/2021
Modified
07/22/2024

Description

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. The Mozilla Foundation Security Advisory describes this issue as: A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials.

Solution(s)

  • oracle-linux-upgrade-firefox
  • oracle-linux-upgrade-thunderbird

References

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