Improper Restriction of Rendered UI Layers or Frames Affecting MozillaFirefox package, versions <115.6.0-150200.152.120.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-SLES153-MOZILLAFIREFOX-6135051
  • published21 Dec 2023
  • disclosed20 Dec 2023

Introduced: 20 Dec 2023

CVE-2023-6206  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 MozillaFirefox to version 115.6.0-150200.152.120.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream MozillaFirefox package and not the MozillaFirefox package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVSS Scores

version 3.1