Improper Restriction of Rendered UI Layers or Frames Affecting firefox package, versions <135.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOX-8689521
  • published6 Feb 2025
  • disclosed4 Feb 2025

Introduced: 4 Feb 2025

NewCVE-2025-1018  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox to version 135.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.

CVSS Scores

version 3.1