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CVE-2020-15654 PUBLISHED

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.

EPSS 0.49% · 65.4th percentile

Risk Scores

EPSS Score
0.49%
65.4th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSmozjs5252.9.1-1ubuntu3, 52.9.1-1build1, 0
Ubuntu:20.04:LTSmozjs6868.6.0-1ubuntu1, 68.6.0-1, 68.5.0-2~fakesync
Ubuntu:18.04:LTSthunderbird0, 1:68.10.0+build1-0ubuntu0.18.04.1, 1:68.8.0+build2-0ubuntu0.18.04.2
Ubuntu:20.04:LTSfirefox69.0.3+build1-0ubuntu1, 0, 78.0.2+build2-0ubuntu0.20.04.1
Ubuntu:16.04:LTSfirefox0, 63.0.3+build1-0ubuntu0.16.04.1, 64.0+build3-0ubuntu0.16.04.1
Ubuntu:18.04:LTSmozjs3838.8.0~repack1-0ubuntu4, 0, 38.8.0~repack1-0ubuntu1
Ubuntu:20.04:LTSthunderbird1:68.2.1+build1-0ubuntu1, 1:68.2.2+build1-0ubuntu1, 1:68.3.0+build2-0ubuntu1
Ubuntu:18.04:LTSmozjs5252.8.1-0ubuntu0.18.04.1, 0, 52.3.1-0ubuntu3
Ubuntu:18.04:LTSfirefox67.0.1+build1-0ubuntu0.18.04.1, 67.0+build2-0ubuntu0.18.04.1, 66.0.5+build1-0ubuntu0.18.04.1

Timeline

References

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