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Red Hat: CVE-2020-15654: CVE-2020-15654 Mozilla: Custom cursor can overlay user interface (Multiple Advisories)

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Red Hat: CVE-2020-15654: CVE-2020-15654 Mozilla: Custom cursor can overlay user interface (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
08/10/2020
Created
08/28/2020
Added
08/27/2020
Modified
12/15/2023

Description

When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Solution(s)

  • redhat-upgrade-firefox
  • redhat-upgrade-firefox-debuginfo
  • redhat-upgrade-firefox-debugsource

References

  • CVE-2020-15654
  • RHSA-2020:3557
  • RHSA-2020:3559
  • RHSA-2020:4080

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